diff --git a/abstract-document/pom.xml b/abstract-document/pom.xml
index bdcdd170a43a..452ac6319b15 100644
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
+        <version>1.21.0</version>
     </parent>
     <artifactId>abstract-document</artifactId>
     <dependencies>
diff --git a/abstract-factory/pom.xml b/abstract-factory/pom.xml
index 00c9a491cf15..d0a6a4330466 100644
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>abstract-factory</artifactId>
   <dependencies>
diff --git a/acyclic-visitor/pom.xml b/acyclic-visitor/pom.xml
index 4a0f740fdd42..9d091750ff5c 100644
--- a/acyclic-visitor/pom.xml
+++ b/acyclic-visitor/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	
 	<artifactId>acyclic-visitor</artifactId>
diff --git a/adapter/pom.xml b/adapter/pom.xml
index 0c47247dd8a7..5d0940b94261 100644
--- a/adapter/pom.xml
+++ b/adapter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>adapter</artifactId>
   <dependencies>
diff --git a/aggregator-microservices/aggregator-service/pom.xml b/aggregator-microservices/aggregator-service/pom.xml
index c4ad9cf1a4a9..5a23ad063480 100644
--- a/aggregator-microservices/aggregator-service/pom.xml
+++ b/aggregator-microservices/aggregator-service/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>aggregator-microservices</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
+        <version>1.21.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/aggregator-microservices/information-microservice/pom.xml b/aggregator-microservices/information-microservice/pom.xml
index 85992658990b..dd29d683057a 100644
--- a/aggregator-microservices/information-microservice/pom.xml
+++ b/aggregator-microservices/information-microservice/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>aggregator-microservices</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/aggregator-microservices/inventory-microservice/pom.xml b/aggregator-microservices/inventory-microservice/pom.xml
index e19ba55533fb..66943eb8d701 100644
--- a/aggregator-microservices/inventory-microservice/pom.xml
+++ b/aggregator-microservices/inventory-microservice/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>aggregator-microservices</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/aggregator-microservices/pom.xml b/aggregator-microservices/pom.xml
index 20e912395a05..98caca2070ff 100644
--- a/aggregator-microservices/pom.xml
+++ b/aggregator-microservices/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
     <artifactId>aggregator-microservices</artifactId>
diff --git a/ambassador/pom.xml b/ambassador/pom.xml
index efc8437051fe..ee04afc0af89 100644
--- a/ambassador/pom.xml
+++ b/ambassador/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
   <artifactId>ambassador</artifactId>
diff --git a/api-gateway/api-gateway-service/pom.xml b/api-gateway/api-gateway-service/pom.xml
index b17d71bfb905..bf96a660994a 100644
--- a/api-gateway/api-gateway-service/pom.xml
+++ b/api-gateway/api-gateway-service/pom.xml
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     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
   <artifactId>api-gateway-service</artifactId>
diff --git a/api-gateway/image-microservice/pom.xml b/api-gateway/image-microservice/pom.xml
index bf70cda03c74..7ac0b9c90246 100644
--- a/api-gateway/image-microservice/pom.xml
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@@ -29,7 +29,7 @@
   <parent>
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     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
diff --git a/api-gateway/pom.xml b/api-gateway/pom.xml
index a46a511177a7..7d5adf478468 100644
--- a/api-gateway/pom.xml
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diff --git a/api-gateway/price-microservice/pom.xml b/api-gateway/price-microservice/pom.xml
index 33931cac5b2d..c3668a7f9558 100644
--- a/api-gateway/price-microservice/pom.xml
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     <artifactId>api-gateway</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
diff --git a/async-method-invocation/pom.xml b/async-method-invocation/pom.xml
index 0c42bc970333..2bfbed289035 100644
--- a/async-method-invocation/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>async-method-invocation</artifactId>
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diff --git a/balking/pom.xml b/balking/pom.xml
index f20969b62765..a6e02fac8c29 100644
--- a/balking/pom.xml
+++ b/balking/pom.xml
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     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
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   <modelVersion>4.0.0</modelVersion>
 
diff --git a/bridge/pom.xml b/bridge/pom.xml
index cf45178a1925..a6082e24f3fa 100644
--- a/bridge/pom.xml
+++ b/bridge/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>bridge</artifactId>
   <dependencies>
diff --git a/builder/pom.xml b/builder/pom.xml
index dcf61fad5691..2f094dbfb33a 100644
--- a/builder/pom.xml
+++ b/builder/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>builder</artifactId>
   <dependencies>
diff --git a/business-delegate/pom.xml b/business-delegate/pom.xml
index ab2f1ae3cb2e..c1abe317e18d 100644
--- a/business-delegate/pom.xml
+++ b/business-delegate/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>business-delegate</artifactId>
 	<dependencies>
diff --git a/bytecode/pom.xml b/bytecode/pom.xml
index e9e6247f8eb2..3e6fd5ca656c 100644
--- a/bytecode/pom.xml
+++ b/bytecode/pom.xml
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         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/caching/pom.xml b/caching/pom.xml
index c678aba4f4e4..b18d250b8ccd 100644
--- a/caching/pom.xml
+++ b/caching/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   </parent>
   <artifactId>caching</artifactId>
   <dependencies>
diff --git a/callback/pom.xml b/callback/pom.xml
index 46e9e2c9a5fe..04ab9c6fad5b 100644
--- a/callback/pom.xml
+++ b/callback/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   </parent>
   <artifactId>callback</artifactId>
   <dependencies>
diff --git a/chain/pom.xml b/chain/pom.xml
index 86b469ed828f..f992cf7871d0 100644
--- a/chain/pom.xml
+++ b/chain/pom.xml
@@ -29,7 +29,7 @@
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     <artifactId>java-design-patterns</artifactId>
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   <artifactId>chain</artifactId>
   <dependencies>
diff --git a/collection-pipeline/pom.xml b/collection-pipeline/pom.xml
index 6003c9b4d7b3..3390f41dbf39 100644
--- a/collection-pipeline/pom.xml
+++ b/collection-pipeline/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>collection-pipeline</artifactId>
   <dependencies>
diff --git a/command/pom.xml b/command/pom.xml
index 6d22f80a3ef1..c0eee39bffa7 100644
--- a/command/pom.xml
+++ b/command/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>command</artifactId>
   <dependencies>
diff --git a/commander/pom.xml b/commander/pom.xml
index bbf69b597113..baeee42fd564 100644
--- a/commander/pom.xml
+++ b/commander/pom.xml
@@ -3,7 +3,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   </parent>
   <artifactId>commander</artifactId>
   <dependencies>
diff --git a/composite/pom.xml b/composite/pom.xml
index 9d6f53e2cf08..4698ed1419b7 100644
--- a/composite/pom.xml
+++ b/composite/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>composite</artifactId>
   <dependencies>
diff --git a/converter/pom.xml b/converter/pom.xml
index 18b70a1d1e01..412d2509f741 100644
--- a/converter/pom.xml
+++ b/converter/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
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     </parent>
     <modelVersion>4.0.0</modelVersion>
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diff --git a/cqrs/pom.xml b/cqrs/pom.xml
index 428a9943a2f2..aeec001b0e28 100644
--- a/cqrs/pom.xml
+++ b/cqrs/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>cqrs</artifactId>
 	<dependencies>
diff --git a/dao/pom.xml b/dao/pom.xml
index addefc20873b..743bfc429641 100644
--- a/dao/pom.xml
+++ b/dao/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   </parent>
   <artifactId>dao</artifactId>
 
diff --git a/data-bus/pom.xml b/data-bus/pom.xml
index 918da99040d1..20d9f817bc6b 100644
--- a/data-bus/pom.xml
+++ b/data-bus/pom.xml
@@ -33,7 +33,7 @@
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         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
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     <artifactId>data-bus</artifactId>
     <dependencies>
diff --git a/data-mapper/pom.xml b/data-mapper/pom.xml
index e64f44747e55..ca48e87ad49f 100644
--- a/data-mapper/pom.xml
+++ b/data-mapper/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
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 	</parent>
 	<artifactId>data-mapper</artifactId>
 	<dependencies>
diff --git a/data-transfer-object/pom.xml b/data-transfer-object/pom.xml
index 79a54564430e..e7b0a5ddc734 100644
--- a/data-transfer-object/pom.xml
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         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
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     <artifactId>data-transfer-object</artifactId>
     <dependencies>
diff --git a/decorator/pom.xml b/decorator/pom.xml
index e92b9dc492b2..f80026ff9209 100644
--- a/decorator/pom.xml
+++ b/decorator/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>decorator</artifactId>
   <dependencies>
diff --git a/delegation/pom.xml b/delegation/pom.xml
index 02b0fda4adeb..55fb8a14703e 100644
--- a/delegation/pom.xml
+++ b/delegation/pom.xml
@@ -30,7 +30,7 @@
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         <artifactId>java-design-patterns</artifactId>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/dependency-injection/pom.xml b/dependency-injection/pom.xml
index 21873c86813c..1dd72abcc33f 100644
--- a/dependency-injection/pom.xml
+++ b/dependency-injection/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>dependency-injection</artifactId>
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diff --git a/dirty-flag/pom.xml b/dirty-flag/pom.xml
index de3ef48f0596..caaa58795935 100644
--- a/dirty-flag/pom.xml
+++ b/dirty-flag/pom.xml
@@ -29,11 +29,11 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <groupId>com.iluwatar</groupId>
   <artifactId>dirty-flag</artifactId>
-  <version>1.21.0-SNAPSHOT</version>
+  <version>1.21.0</version>
   <name>dirty-flag</name>
   <url>http://maven.apache.org</url>
   <properties>
diff --git a/double-checked-locking/pom.xml b/double-checked-locking/pom.xml
index 49ffe88a77fb..9d3ac69af8ac 100644
--- a/double-checked-locking/pom.xml
+++ b/double-checked-locking/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>double-checked-locking</artifactId>
   <dependencies>
diff --git a/double-dispatch/pom.xml b/double-dispatch/pom.xml
index 22fe7a684bc3..11f66b11455b 100644
--- a/double-dispatch/pom.xml
+++ b/double-dispatch/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   <artifactId>double-dispatch</artifactId>
   <dependencies>
diff --git a/eip-aggregator/pom.xml b/eip-aggregator/pom.xml
index 54de34334464..3f1e930c2f2c 100644
--- a/eip-aggregator/pom.xml
+++ b/eip-aggregator/pom.xml
@@ -26,7 +26,7 @@
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         <groupId>com.iluwatar</groupId>
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     <dependencies>
diff --git a/eip-message-channel/pom.xml b/eip-message-channel/pom.xml
index fd7ee5c0e5e8..e0927ef5aa03 100644
--- a/eip-message-channel/pom.xml
+++ b/eip-message-channel/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>eip-message-channel</artifactId>
 	<dependencies>
diff --git a/eip-publish-subscribe/pom.xml b/eip-publish-subscribe/pom.xml
index 2a041930d048..4d8711a563c3 100644
--- a/eip-publish-subscribe/pom.xml
+++ b/eip-publish-subscribe/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>eip-publish-subscribe</artifactId>
 	<dependencies>
diff --git a/eip-splitter/pom.xml b/eip-splitter/pom.xml
index 3f5a79ca1dcc..d5aab1ed29f6 100644
--- a/eip-splitter/pom.xml
+++ b/eip-splitter/pom.xml
@@ -26,7 +26,7 @@
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     <dependencies>
diff --git a/eip-wire-tap/pom.xml b/eip-wire-tap/pom.xml
index e3791102d367..a2b3aee8f556 100644
--- a/eip-wire-tap/pom.xml
+++ b/eip-wire-tap/pom.xml
@@ -26,7 +26,7 @@
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     <dependencies>
diff --git a/event-aggregator/pom.xml b/event-aggregator/pom.xml
index dca72de732eb..4ede7e366d80 100644
--- a/event-aggregator/pom.xml
+++ b/event-aggregator/pom.xml
@@ -28,7 +28,7 @@
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 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>event-aggregator</artifactId>
 	<dependencies>
diff --git a/event-asynchronous/pom.xml b/event-asynchronous/pom.xml
index 908662d083d9..647296d0d629 100644
--- a/event-asynchronous/pom.xml
+++ b/event-asynchronous/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>event-asynchronous</artifactId>
   <dependencies>
diff --git a/event-driven-architecture/pom.xml b/event-driven-architecture/pom.xml
index a336c9f13962..dc846f241173 100644
--- a/event-driven-architecture/pom.xml
+++ b/event-driven-architecture/pom.xml
@@ -31,7 +31,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.21.0-SNAPSHOT</version>
+        <version>1.21.0</version>
     </parent>
 
     <artifactId>event-driven-architecture</artifactId>
diff --git a/event-queue/pom.xml b/event-queue/pom.xml
index bd80ba5a4bec..2d341e7eb67b 100644
--- a/event-queue/pom.xml
+++ b/event-queue/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>event-queue</artifactId>
   <dependencies>
diff --git a/event-sourcing/pom.xml b/event-sourcing/pom.xml
index 4b4d8c701cfa..8242cb502505 100644
--- a/event-sourcing/pom.xml
+++ b/event-sourcing/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>event-sourcing</artifactId>
   <dependencies>
diff --git a/execute-around/pom.xml b/execute-around/pom.xml
index 6fd853ff571f..50b5672d4a81 100644
--- a/execute-around/pom.xml
+++ b/execute-around/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>execute-around</artifactId>
   <dependencies>
diff --git a/extension-objects/pom.xml b/extension-objects/pom.xml
index 2dee66d3aa46..340e59c44a9f 100644
--- a/extension-objects/pom.xml
+++ b/extension-objects/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/facade/pom.xml b/facade/pom.xml
index 1b9bcb86ad4a..c608bfe4654f 100644
--- a/facade/pom.xml
+++ b/facade/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>facade</artifactId>
   <dependencies>
diff --git a/factory-kit/pom.xml b/factory-kit/pom.xml
index ac23757ec86d..9a4d9eae8b68 100644
--- a/factory-kit/pom.xml
+++ b/factory-kit/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.21.0-SNAPSHOT</version>
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     </parent>
     <artifactId>factory-kit</artifactId>
     <dependencies>
diff --git a/factory-method/pom.xml b/factory-method/pom.xml
index 226c80958e1d..0a18f23a6c1e 100644
--- a/factory-method/pom.xml
+++ b/factory-method/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>factory-method</artifactId>
   <dependencies>
diff --git a/feature-toggle/pom.xml b/feature-toggle/pom.xml
index bd0fb5d71ce5..a9589047a86b 100644
--- a/feature-toggle/pom.xml
+++ b/feature-toggle/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
+        <version>1.21.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/fluentinterface/pom.xml b/fluentinterface/pom.xml
index 605537a73b8a..6276ee3836e1 100644
--- a/fluentinterface/pom.xml
+++ b/fluentinterface/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
+        <version>1.21.0</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/flux/pom.xml b/flux/pom.xml
index 726df234a27a..9f9c367196f2 100644
--- a/flux/pom.xml
+++ b/flux/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>flux</artifactId>
   <dependencies>
diff --git a/flyweight/pom.xml b/flyweight/pom.xml
index 5bb8f2254950..0cd16209f4b4 100644
--- a/flyweight/pom.xml
+++ b/flyweight/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>flyweight</artifactId>
   <dependencies>
diff --git a/front-controller/pom.xml b/front-controller/pom.xml
index 27dc990d110a..395fe55c4acf 100644
--- a/front-controller/pom.xml
+++ b/front-controller/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>front-controller</artifactId>
 	<dependencies>
diff --git a/guarded-suspension/pom.xml b/guarded-suspension/pom.xml
index c944f8586951..3616ecfed7cd 100644
--- a/guarded-suspension/pom.xml
+++ b/guarded-suspension/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <packaging>jar</packaging>
   <artifactId>guarded-suspension</artifactId>
diff --git a/half-sync-half-async/pom.xml b/half-sync-half-async/pom.xml
index a532c619347e..f6f6b727a33f 100644
--- a/half-sync-half-async/pom.xml
+++ b/half-sync-half-async/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>half-sync-half-async</artifactId>
   <dependencies>
diff --git a/hexagonal/pom.xml b/hexagonal/pom.xml
index a2c9f1925d51..d94f3ec4c3b3 100644
--- a/hexagonal/pom.xml
+++ b/hexagonal/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>hexagonal</artifactId>
   <dependencies>
diff --git a/intercepting-filter/pom.xml b/intercepting-filter/pom.xml
index bf78e6792669..9b318c69cf27 100644
--- a/intercepting-filter/pom.xml
+++ b/intercepting-filter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>intercepting-filter</artifactId>
   <dependencies>
diff --git a/interpreter/pom.xml b/interpreter/pom.xml
index 1274a4b69557..e0fb1df114ee 100644
--- a/interpreter/pom.xml
+++ b/interpreter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>interpreter</artifactId>
   <dependencies>
diff --git a/iterator/pom.xml b/iterator/pom.xml
index fa06c9d3b0f0..88a626a9585e 100644
--- a/iterator/pom.xml
+++ b/iterator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>iterator</artifactId>
   <dependencies>
diff --git a/layers/pom.xml b/layers/pom.xml
index cdd996ccb515..362109afb505 100644
--- a/layers/pom.xml
+++ b/layers/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<groupId>com.iluwatar.layers</groupId>
 	<artifactId>layers</artifactId>
diff --git a/lazy-loading/pom.xml b/lazy-loading/pom.xml
index 773dd7d8bed6..e2ccf22bee3b 100644
--- a/lazy-loading/pom.xml
+++ b/lazy-loading/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>lazy-loading</artifactId>
   <dependencies>
diff --git a/marker/pom.xml b/marker/pom.xml
index faa6868c237d..dabb13ece783 100644
--- a/marker/pom.xml
+++ b/marker/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/master-worker-pattern/pom.xml b/master-worker-pattern/pom.xml
index 1c317bac9446..fdc0d4e91b6c 100644
--- a/master-worker-pattern/pom.xml
+++ b/master-worker-pattern/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>master-worker-pattern</artifactId>
   <dependencies>
diff --git a/mediator/pom.xml b/mediator/pom.xml
index d14e82bcc522..804f80ecee19 100644
--- a/mediator/pom.xml
+++ b/mediator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>
diff --git a/memento/pom.xml b/memento/pom.xml
index fc3e1954f76d..b48d66c4a080 100644
--- a/memento/pom.xml
+++ b/memento/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>memento</artifactId>
   <dependencies>
diff --git a/model-view-controller/pom.xml b/model-view-controller/pom.xml
index 523319a28e50..8bd3b5a5386d 100644
--- a/model-view-controller/pom.xml
+++ b/model-view-controller/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>
diff --git a/model-view-presenter/pom.xml b/model-view-presenter/pom.xml
index a4e91652820d..54616e2dbede 100644
--- a/model-view-presenter/pom.xml
+++ b/model-view-presenter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>
diff --git a/module/pom.xml b/module/pom.xml
index 0320d97c0a8f..facf36cc813b 100644
--- a/module/pom.xml
+++ b/module/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>module</artifactId>
 	<dependencies>
diff --git a/monad/pom.xml b/monad/pom.xml
index 45741ee1b6e7..ed29eebe20bd 100644
--- a/monad/pom.xml
+++ b/monad/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
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     </parent>
     <artifactId>monad</artifactId>
     <dependencies>
diff --git a/monostate/pom.xml b/monostate/pom.xml
index d39071e261ea..09a43f5bf06f 100644
--- a/monostate/pom.xml
+++ b/monostate/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>monostate</artifactId>
   <dependencies>
diff --git a/multiton/pom.xml b/multiton/pom.xml
index beaccf3e3db8..8c3f1badbddc 100644
--- a/multiton/pom.xml
+++ b/multiton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>
diff --git a/mute-idiom/pom.xml b/mute-idiom/pom.xml
index 7cdbc5a42e0a..7d91bbe17a67 100644
--- a/mute-idiom/pom.xml
+++ b/mute-idiom/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 	<artifactId>mute-idiom</artifactId>
 	<dependencies>
diff --git a/mutex/pom.xml b/mutex/pom.xml
index 85c5208d83b1..37188c21318b 100644
--- a/mutex/pom.xml
+++ b/mutex/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>mutex</artifactId>
   <dependencies>
diff --git a/naked-objects/dom/pom.xml b/naked-objects/dom/pom.xml
index 519e2cc0d883..c8029784e38e 100644
--- a/naked-objects/dom/pom.xml
+++ b/naked-objects/dom/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 
 	<artifactId>naked-objects-dom</artifactId>
diff --git a/naked-objects/fixture/pom.xml b/naked-objects/fixture/pom.xml
index cdb77b1b940e..c4d1f48bc4ee 100644
--- a/naked-objects/fixture/pom.xml
+++ b/naked-objects/fixture/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 
 	<artifactId>naked-objects-fixture</artifactId>
diff --git a/naked-objects/integtests/pom.xml b/naked-objects/integtests/pom.xml
index 460f2f5060cc..cfe74e43f01a 100644
--- a/naked-objects/integtests/pom.xml
+++ b/naked-objects/integtests/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 
 	<artifactId>naked-objects-integtests</artifactId>
diff --git a/naked-objects/pom.xml b/naked-objects/pom.xml
index 2a1832ea7e63..021374a6910d 100644
--- a/naked-objects/pom.xml
+++ b/naked-objects/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 
 	<artifactId>naked-objects</artifactId>
@@ -350,17 +350,17 @@
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-dom</artifactId>
-				<version>1.21.0-SNAPSHOT</version>
+				<version>1.21.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-fixture</artifactId>
-				<version>1.21.0-SNAPSHOT</version>
+				<version>1.21.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-webapp</artifactId>
-				<version>1.21.0-SNAPSHOT</version>
+				<version>1.21.0</version>
 			</dependency>
 
 		</dependencies>
diff --git a/naked-objects/webapp/pom.xml b/naked-objects/webapp/pom.xml
index 54ccc40afae6..fff34db70edd 100644
--- a/naked-objects/webapp/pom.xml
+++ b/naked-objects/webapp/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.21.0-SNAPSHOT</version>
+		<version>1.21.0</version>
 	</parent>
 
 	<artifactId>naked-objects-webapp</artifactId>
diff --git a/null-object/pom.xml b/null-object/pom.xml
index 5c35e6a0a9e0..d5e1930c7ce2 100644
--- a/null-object/pom.xml
+++ b/null-object/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   </parent>
   <artifactId>null-object</artifactId>
   <dependencies>
diff --git a/object-mother/pom.xml b/object-mother/pom.xml
index c0ed50739c74..1e9b61af1d9d 100644
--- a/object-mother/pom.xml
+++ b/object-mother/pom.xml
@@ -30,7 +30,7 @@
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         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.21.0-SNAPSHOT</version>
+        <version>1.21.0</version>
     </parent>
     <artifactId>object-mother</artifactId>
     <dependencies>
diff --git a/object-pool/pom.xml b/object-pool/pom.xml
index fcb95db29fea..a3eb20c743ba 100644
--- a/object-pool/pom.xml
+++ b/object-pool/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   <artifactId>object-pool</artifactId>
   <dependencies>
diff --git a/observer/pom.xml b/observer/pom.xml
index 2248957c7179..0d1c18300798 100644
--- a/observer/pom.xml
+++ b/observer/pom.xml
@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
   </parent>
   <artifactId>observer</artifactId>
   <dependencies>
diff --git a/page-object/pom.xml b/page-object/pom.xml
index ae239725dbe7..169b9512e17d 100644
--- a/page-object/pom.xml
+++ b/page-object/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.21.0-SNAPSHOT</version>
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     <artifactId>page-object</artifactId>
     <packaging>pom</packaging>
diff --git a/page-object/sample-application/pom.xml b/page-object/sample-application/pom.xml
index d78e46b28a78..e18312e15fb2 100644
--- a/page-object/sample-application/pom.xml
+++ b/page-object/sample-application/pom.xml
@@ -29,7 +29,7 @@
   <parent>
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     <groupId>com.iluwatar</groupId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
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   <artifactId>sample-application</artifactId>
 </project>
diff --git a/page-object/test-automation/pom.xml b/page-object/test-automation/pom.xml
index 7f8bcb12d0e9..dc5a17549b2c 100644
--- a/page-object/test-automation/pom.xml
+++ b/page-object/test-automation/pom.xml
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   <dependencies>
diff --git a/partial-response/pom.xml b/partial-response/pom.xml
index 04b760ca833e..1bc6a1b6ccee 100644
--- a/partial-response/pom.xml
+++ b/partial-response/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.21.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/poison-pill/pom.xml b/poison-pill/pom.xml
index eb68f4a108e6..f701473b33ee 100644
--- a/poison-pill/pom.xml
+++ b/poison-pill/pom.xml
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   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
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   <dependencies>
diff --git a/pom.xml b/pom.xml
index c55ed6492211..e4aeb5253457 100644
--- a/pom.xml
+++ b/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.21.0-SNAPSHOT</version>
+    <version>1.21.0</version>
     <packaging>pom</packaging>
     <inceptionYear>2014</inceptionYear>
     <properties>
diff --git a/priority-queue/pom.xml b/priority-queue/pom.xml
index 9e5a788066c3..3fb50b5746de 100644
--- a/priority-queue/pom.xml
+++ b/priority-queue/pom.xml
@@ -31,7 +31,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.21.0-SNAPSHOT</version>
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     <dependencies>
diff --git a/private-class-data/pom.xml b/private-class-data/pom.xml
index e01e81149459..fa2e4fc0d0a4 100644
--- a/private-class-data/pom.xml
+++ b/private-class-data/pom.xml
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   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>private-class-data</artifactId>
   <dependencies>
diff --git a/producer-consumer/pom.xml b/producer-consumer/pom.xml
index 4355df70256c..c09b8e47aa35 100644
--- a/producer-consumer/pom.xml
+++ b/producer-consumer/pom.xml
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diff --git a/promise/pom.xml b/promise/pom.xml
index 6c29939d5228..89ce50e997fc 100644
--- a/promise/pom.xml
+++ b/promise/pom.xml
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   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>promise</artifactId>
   <dependencies>
diff --git a/property/pom.xml b/property/pom.xml
index dc0430fe3f97..68da0c2f52b2 100644
--- a/property/pom.xml
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   <artifactId>property</artifactId>
   <dependencies>
diff --git a/prototype/pom.xml b/prototype/pom.xml
index ef81d38ecc2a..ab5fa9373af7 100644
--- a/prototype/pom.xml
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   <artifactId>prototype</artifactId>
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diff --git a/proxy/pom.xml b/proxy/pom.xml
index aef352a5d23a..98449c48f20f 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
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   <artifactId>proxy</artifactId>
   <dependencies>
diff --git a/queue-load-leveling/pom.xml b/queue-load-leveling/pom.xml
index 4b028e3565fe..0dcf4770e591 100644
--- a/queue-load-leveling/pom.xml
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   <artifactId>queue-load-leveling</artifactId>
   <dependencies>
diff --git a/reactor/pom.xml b/reactor/pom.xml
index 6b561996d623..beebf7b83232 100644
--- a/reactor/pom.xml
+++ b/reactor/pom.xml
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     <artifactId>java-design-patterns</artifactId>
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   <artifactId>reactor</artifactId>
   <dependencies>
diff --git a/reader-writer-lock/pom.xml b/reader-writer-lock/pom.xml
index 460e58baa287..f7154a525012 100644
--- a/reader-writer-lock/pom.xml
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         <groupId>com.iluwatar</groupId>
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     <artifactId>reader-writer-lock</artifactId>
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diff --git a/repository/pom.xml b/repository/pom.xml
index 36f73e344846..be05c82721ef 100644
--- a/repository/pom.xml
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         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
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     <artifactId>repository</artifactId>
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diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index 17985bdef53a..cd311e4e1a8f 100644
--- a/resource-acquisition-is-initialization/pom.xml
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   <artifactId>resource-acquisition-is-initialization</artifactId>
   <dependencies>
diff --git a/retry/pom.xml b/retry/pom.xml
index 931873491ddd..d4d906e49d7b 100644
--- a/retry/pom.xml
+++ b/retry/pom.xml
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         <groupId>com.iluwatar</groupId>
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     <packaging>jar</packaging>
diff --git a/semaphore/pom.xml b/semaphore/pom.xml
index bebd9b802c56..49363925f2a5 100644
--- a/semaphore/pom.xml
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   <artifactId>semaphore</artifactId>
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diff --git a/servant/pom.xml b/servant/pom.xml
index e97b3a9895b2..60be0dd76903 100644
--- a/servant/pom.xml
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   <dependencies>
diff --git a/serverless/pom.xml b/serverless/pom.xml
index 89048283a472..92b525b65e5c 100644
--- a/serverless/pom.xml
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     <dependencies>
diff --git a/service-layer/pom.xml b/service-layer/pom.xml
index 2bd114c55ca2..942cc851980e 100644
--- a/service-layer/pom.xml
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   <artifactId>service-layer</artifactId>
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diff --git a/service-locator/pom.xml b/service-locator/pom.xml
index fa6fcc4ba470..31f247ac5b26 100644
--- a/service-locator/pom.xml
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diff --git a/singleton/pom.xml b/singleton/pom.xml
index 038d6fdac040..a142faec0ebc 100644
--- a/singleton/pom.xml
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diff --git a/spatial-partition/pom.xml b/spatial-partition/pom.xml
index 22eb7a6f68fb..d0227f227b7d 100644
--- a/spatial-partition/pom.xml
+++ b/spatial-partition/pom.xml
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   <artifactId>spatial-partition</artifactId>
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diff --git a/specification/pom.xml b/specification/pom.xml
index 8723651051e2..26cce77656e0 100644
--- a/specification/pom.xml
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diff --git a/state/pom.xml b/state/pom.xml
index 9aeb4ec00cbd..a3499e5bf62e 100644
--- a/state/pom.xml
+++ b/state/pom.xml
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     <artifactId>java-design-patterns</artifactId>
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   <dependencies>
diff --git a/step-builder/pom.xml b/step-builder/pom.xml
index ca5ed709d711..d11312def4bc 100644
--- a/step-builder/pom.xml
+++ b/step-builder/pom.xml
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diff --git a/strategy/pom.xml b/strategy/pom.xml
index a8dbbd007336..6d93322a1b54 100644
--- a/strategy/pom.xml
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@@ -29,7 +29,7 @@
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   <artifactId>strategy</artifactId>
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diff --git a/template-method/pom.xml b/template-method/pom.xml
index 1345eaa6ca86..915e48f2f4a5 100644
--- a/template-method/pom.xml
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diff --git a/thread-pool/pom.xml b/thread-pool/pom.xml
index a77230bf2130..7d9263312817 100644
--- a/thread-pool/pom.xml
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diff --git a/throttling/pom.xml b/throttling/pom.xml
index d477af53f5aa..518b610e0de9 100644
--- a/throttling/pom.xml
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/tls/pom.xml b/tls/pom.xml
index d3ccbfc2b79a..81c53be5dd02 100644
--- a/tls/pom.xml
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   <artifactId>tls</artifactId>
   <dependencies>
diff --git a/tolerant-reader/pom.xml b/tolerant-reader/pom.xml
index 51554d7dce28..1ccd55ca4429 100644
--- a/tolerant-reader/pom.xml
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diff --git a/trampoline/pom.xml b/trampoline/pom.xml
index 338dc101604b..f7a95a54b128 100644
--- a/trampoline/pom.xml
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@@ -30,7 +30,7 @@
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         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
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     </parent>
     <artifactId>trampoline</artifactId>
diff --git a/twin/pom.xml b/twin/pom.xml
index 74e81ec0df44..fae948958aca 100644
--- a/twin/pom.xml
+++ b/twin/pom.xml
@@ -29,7 +29,7 @@
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   <artifactId>twin</artifactId>
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diff --git a/typeobjectpattern/pom.xml b/typeobjectpattern/pom.xml
index 4e66263fefb7..a1546de05e2f 100644
--- a/typeobjectpattern/pom.xml
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diff --git a/unit-of-work/pom.xml b/unit-of-work/pom.xml
index b53075f21e8a..5fb8e9796838 100644
--- a/unit-of-work/pom.xml
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@@ -29,7 +29,7 @@
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diff --git a/value-object/pom.xml b/value-object/pom.xml
index 2b951d2a3135..3f31c8461e5d 100644
--- a/value-object/pom.xml
+++ b/value-object/pom.xml
@@ -30,7 +30,7 @@
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 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
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 	</parent>
 	<artifactId>value-object</artifactId>
 	<dependencies>
diff --git a/visitor/pom.xml b/visitor/pom.xml
index 618b547ea553..f159a28c0551 100644
--- a/visitor/pom.xml
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@@ -29,7 +29,7 @@
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