diff --git a/package.json b/package.json
index 72aa6aa1..75c086e0 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "probot": "^12.3.1"
   },
   "devDependencies": {
-    "@types/express": "^4.17.20",
+    "@types/express": "^4.17.21",
     "@types/jest": "^29.5.6",
     "@types/nock": "^11.1.0",
     "@types/node": "^20.10.3",
diff --git a/yarn.lock b/yarn.lock
index 8191c3c1..a8952a63 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1045,10 +1045,10 @@
     "@types/qs" "*"
     "@types/range-parser" "*"
 
-"@types/express@^4.17.20", "@types/express@^4.17.9":
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.20.tgz#e7c9b40276d29e38a4e3564d7a3d65911e2aa433"
-  integrity sha512-rOaqlkgEvOW495xErXMsmyX3WKBInbhG5eqojXYi3cGUaLoRDlXa5d52fkfWZT963AZ3v2eZ4MbKE6WpDAGVsw==
+"@types/express@^4.17.21", "@types/express@^4.17.9":
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.21.tgz#c26d4a151e60efe0084b23dc3369ebc631ed192d"
+  integrity sha512-ejlPM315qwLpaQlQDTjPdsUFSc6ZsP4AN6AlWnogPjQ7CVi7PYF3YVz+CY3jE2pwYf7E/7HlDAN0rV2GxTG0HQ==
   dependencies:
     "@types/body-parser" "*"
     "@types/express-serve-static-core" "^4.17.33"