diff --git a/packages/aws-cdk/package.json b/packages/aws-cdk/package.json
index 4bb111e863ef6..c476d08300b19 100644
--- a/packages/aws-cdk/package.json
+++ b/packages/aws-cdk/package.json
@@ -77,7 +77,7 @@
     "camelcase": "^6.2.0",
     "cdk-assets": "0.0.0",
     "colors": "^1.4.0",
-    "decamelize": "^4.0.0",
+    "decamelize": "^5.0.0",
     "fs-extra": "^9.0.1",
     "glob": "^7.1.6",
     "json-diff": "^0.5.4",
diff --git a/yarn.lock b/yarn.lock
index 29e50d06679d2..f272cd2be50fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3513,6 +3513,11 @@ decamelize@^4.0.0:
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-4.0.0.tgz#aa472d7bf660eb15f3494efd531cab7f2a709837"
   integrity sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ==
 
+decamelize@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-5.0.0.tgz#88358157b010ef133febfd27c18994bd80c6215b"
+  integrity sha512-U75DcT5hrio3KNtvdULAWnLiAPbFUC4191ldxMmj4FA/mRuBnmDwU0boNfPyFRhnan+Jm+haLeSn3P0afcBn4w==
+
 decimal.js@^10.2.0:
   version "10.2.1"
   resolved "https://registry.yarnpkg.com/decimal.js/-/decimal.js-10.2.1.tgz#238ae7b0f0c793d3e3cea410108b35a2c01426a3"