diff --git a/package-lock.json b/package-lock.json
index c5a3559b26..c9003ab421 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6966,22 +6966,22 @@
       "license": "MIT"
     },
     "node_modules/@types/express": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.21.tgz",
-      "integrity": "sha512-ejlPM315qwLpaQlQDTjPdsUFSc6ZsP4AN6AlWnogPjQ7CVi7PYF3YVz+CY3jE2pwYf7E/7HlDAN0rV2GxTG0HQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-5.0.0.tgz",
+      "integrity": "sha512-DvZriSMehGHL1ZNLzi6MidnsDhUZM/x2pRdDIKdwbUNqqwHxMlRdkxtn6/EPKyqKpHqTl/4nRZsRNLpZxZRpPQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "@types/body-parser": "*",
-        "@types/express-serve-static-core": "^4.17.33",
+        "@types/express-serve-static-core": "^5.0.0",
         "@types/qs": "*",
         "@types/serve-static": "*"
       }
     },
     "node_modules/@types/express-serve-static-core": {
-      "version": "4.19.6",
-      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.6.tgz",
-      "integrity": "sha512-N4LZ2xG7DatVqhCZzOGb1Yi5lMbXSZcmdLDe9EzSndPV2HpWYWzRbaerl2n27irrm94EPpprqa8KpskPT085+A==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-5.0.0.tgz",
+      "integrity": "sha512-AbXMTZGt40T+KON9/Fdxx0B2WK5hsgxcfXJLr5bFpZ7b4JCex2WyQPTEKdXqfHiY5nKKBScZ7yCoO6Pvgxfvnw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -26922,7 +26922,7 @@
       },
       "devDependencies": {
         "@stryker-mutator/test-helpers": "8.6.0",
-        "@types/express": "4.17.21",
+        "@types/express": "5.0.0",
         "@types/node": "20.16.10",
         "@types/semver": "7.5.8",
         "jasmine-core": "5.3.0",
diff --git a/packages/karma-runner/package.json b/packages/karma-runner/package.json
index 99a3b77624..4197d6e0b4 100644
--- a/packages/karma-runner/package.json
+++ b/packages/karma-runner/package.json
@@ -49,7 +49,7 @@
   "homepage": "https://stryker-mutator.io/docs/stryker-js/karma-runner",
   "devDependencies": {
     "@stryker-mutator/test-helpers": "8.6.0",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/node": "20.16.10",
     "@types/semver": "7.5.8",
     "jasmine-core": "5.3.0",