diff --git a/lib/express-adapter/package.json b/lib/express-adapter/package.json
index 1328cce40..283327ba8 100644
--- a/lib/express-adapter/package.json
+++ b/lib/express-adapter/package.json
@@ -24,7 +24,7 @@
   "devDependencies": {
     "@not-govuk/restify": "workspace:^0.15.2",
     "@types/etag": "^1.8.3",
-    "@types/express-serve-static-core": "5.0.2",
+    "@types/express-serve-static-core": "5.0.3",
     "jest": "29.7.0",
     "jest-environment-jsdom": "29.7.0",
     "ts-jest": "29.2.5",