diff --git a/packages/aws-cdk/package.json b/packages/aws-cdk/package.json
index 3234148ba2b1a..e2180350be1ff 100644
--- a/packages/aws-cdk/package.json
+++ b/packages/aws-cdk/package.json
@@ -84,7 +84,7 @@
     "source-map-support": "^0.5.16",
     "table": "^5.4.6",
     "uuid": "^7.0.2",
-    "yaml": "^1.8.2",
+    "yaml": "^1.8.3",
     "yargs": "^15.3.1"
   },
   "repository": {
diff --git a/packages/cdk-dasm/package.json b/packages/cdk-dasm/package.json
index 650d02c8946df..6874f0ec85c6c 100644
--- a/packages/cdk-dasm/package.json
+++ b/packages/cdk-dasm/package.json
@@ -27,7 +27,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "codemaker": "^1.1.0",
-    "yaml": "1.8.2"
+    "yaml": "1.8.3"
   },
   "devDependencies": {
     "@types/jest": "^25.1.4",
diff --git a/packages/decdk/package.json b/packages/decdk/package.json
index 4a185ae31d03f..7fe33678ab557 100644
--- a/packages/decdk/package.json
+++ b/packages/decdk/package.json
@@ -169,7 +169,7 @@
     "jsii-reflect": "^1.1.0",
     "jsonschema": "^1.2.5",
     "constructs": "^2.0.0",
-    "yaml": "1.8.2",
+    "yaml": "1.8.3",
     "yargs": "^15.3.1"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 26ead55b34fd1..d6f5cbf871d67 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12073,10 +12073,10 @@ yallist@^3.0.0, yallist@^3.0.2, yallist@^3.0.3:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
   integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
-yaml@1.8.2, yaml@^1.8.2:
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.8.2.tgz#a29c03f578faafd57dcb27055f9a5d569cb0c3d9"
-  integrity sha512-omakb0d7FjMo3R1D2EbTKVIk6dAVLRxFXdLZMEUToeAvuqgG/YuHMuQOZ5fgk+vQ8cx+cnGKwyg+8g8PNT0xQg==
+yaml@1.8.3, yaml@^1.8.3:
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.8.3.tgz#2f420fca58b68ce3a332d0ca64be1d191dd3f87a"
+  integrity sha512-X/v7VDnK+sxbQ2Imq4Jt2PRUsRsP7UcpSl3Llg6+NRRqWLIvxkMFYtH1FmvwNGYRKKPa+EPA4qDBlI9WVG1UKw==
   dependencies:
     "@babel/runtime" "^7.8.7"