diff --git a/cdk/package.json b/cdk/package.json
index 70dce1a..a735821 100644
--- a/cdk/package.json
+++ b/cdk/package.json
@@ -16,7 +16,7 @@
     "@guardian/eslint-config-typescript": "2.0.0",
     "@guardian/prettier": "1.0.0",
     "@types/jest": "^29.5.0",
-    "@types/node": "18.15.3",
+    "@types/node": "20.4.2",
     "aws-cdk": "2.54.0",
     "aws-cdk-lib": "2.54.0",
     "constructs": "10.1.187",
diff --git a/cdk/yarn.lock b/cdk/yarn.lock
index 441832c..82793a5 100644
--- a/cdk/yarn.lock
+++ b/cdk/yarn.lock
@@ -892,10 +892,10 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==
 
-"@types/node@*", "@types/node@18.15.3":
-  version "18.15.3"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.15.3.tgz#f0b991c32cfc6a4e7f3399d6cb4b8cf9a0315014"
-  integrity sha512-p6ua9zBxz5otCmbpb5D3U4B5Nanw6Pk3PPyX05xnxbB/fRv71N7CPmORg7uAD5P70T0xmx1pzAx/FUfa5X+3cw==
+"@types/node@*", "@types/node@20.4.2":
+  version "20.4.2"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.4.2.tgz#129cc9ae69f93824f92fac653eebfb4812ab4af9"
+  integrity sha512-Dd0BYtWgnWJKwO1jkmTrzofjK2QXXcai0dmtzvIBhcA+RsG5h8R3xlyta0kGOZRNfL9GuRtb1knmPEhQrePCEw==
 
 "@types/normalize-package-data@^2.4.0":
   version "2.4.1"