diff --git a/contracttester/build.gradle b/contracttester/build.gradle
index 05db3b6..aaa6bda 100644
--- a/contracttester/build.gradle
+++ b/contracttester/build.gradle
@@ -109,6 +109,6 @@ task contractTestTriggeredByOther(dependsOn: contracttests) {
 }
 
 task wrapper(type: Wrapper) {
-  gradleVersion = '2.2.1'
+  gradleVersion = '2.3'
   distributionUrl = "https://services.gradle.org/distributions/gradle-${gradleVersion}-all.zip"
 }
diff --git a/contracttester/gradle/wrapper/gradle-wrapper.jar b/contracttester/gradle/wrapper/gradle-wrapper.jar
index c97a8bd..085a1cd 100644
Binary files a/contracttester/gradle/wrapper/gradle-wrapper.jar and b/contracttester/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/contracttester/gradle/wrapper/gradle-wrapper.properties b/contracttester/gradle/wrapper/gradle-wrapper.properties
index 13d8553..4e2ad62 100644
--- a/contracttester/gradle/wrapper/gradle-wrapper.properties
+++ b/contracttester/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Feb 26 16:37:46 CET 2015
+#Tue May 05 18:15:45 CEST 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.3-all.zip
diff --git a/example-project/build.gradle b/example-project/build.gradle
index dd455a9..ab6c80e 100644
--- a/example-project/build.gradle
+++ b/example-project/build.gradle
@@ -190,6 +190,6 @@ def writeVersion(def version) {
 }
 
 task wrapper(type: Wrapper) {
-  gradleVersion = '2.2.1'
+  gradleVersion = '2.3'
   distributionUrl = "https://services.gradle.org/distributions/gradle-${gradleVersion}-all.zip"
 }
diff --git a/example-project/gradle/wrapper/gradle-wrapper.jar b/example-project/gradle/wrapper/gradle-wrapper.jar
index c97a8bd..085a1cd 100644
Binary files a/example-project/gradle/wrapper/gradle-wrapper.jar and b/example-project/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/example-project/gradle/wrapper/gradle-wrapper.properties b/example-project/gradle/wrapper/gradle-wrapper.properties
index 54c2bb8..e08abb1 100644
--- a/example-project/gradle/wrapper/gradle-wrapper.properties
+++ b/example-project/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Feb 10 22:33:57 CET 2015
+#Tue May 05 18:15:41 CEST 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.3-all.zip