diff --git a/packages/google-cloud-serverless/package.json b/packages/google-cloud-serverless/package.json
index 64761da8d428..c404f18df8e9 100644
--- a/packages/google-cloud-serverless/package.json
+++ b/packages/google-cloud-serverless/package.json
@@ -49,15 +49,23 @@
   },
   "dependencies": {
     "@sentry/core": "10.29.0",
-    "@sentry/node": "10.29.0",
-    "@types/express": "^4.17.14"
+    "@sentry/node": "10.29.0"
   },
   "devDependencies": {
     "@google-cloud/bigquery": "^5.3.0",
     "@google-cloud/common": "^3.4.1",
+    "@types/express": "^5.0.6",
     "@types/node": "^18.19.1",
     "nock": "^13.5.5"
   },
+  "peerDependencies": {
+    "@types/express": "^4.x || ^5.x"
+  },
+  "peerDependenciesMeta": {
+    "@types/express": {
+      "optional": true
+    }
+  },
   "scripts": {
     "build": "run-p build:transpile build:types",
     "build:dev": "yarn build",
diff --git a/yarn.lock b/yarn.lock
index 210e9d186cfb..6c0b0813ad7c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8616,10 +8616,10 @@
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.51.tgz#cfd70924a25a3fd32b218e5e420e6897e1ac4f40"
   integrity sha512-CuPgU6f3eT/XgKKPqKd/gLZV1Xmvf1a2R5POBOGQa6uv82xpls89HU5zKeVoyR8XzHd1RGNOlQlvUe3CFkjWNQ==
 
-"@types/express-serve-static-core@*", "@types/express-serve-static-core@^4.17.18", "@types/express-serve-static-core@^4.17.33":
-  version "4.17.43"
-  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.43.tgz#10d8444be560cb789c4735aea5eac6e5af45df54"
-  integrity sha512-oaYtiBirUOPQGSWNGPWnzyAFJ0BP3cwvN4oWZQY+zUBwpVIGsKUkpBpSztp74drYcjavs7SKFZ4DX1V2QeN8rg==
+"@types/express-serve-static-core@*", "@types/express-serve-static-core@^5.0.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-5.1.0.tgz#74f47555b3d804b54cb7030e6f9aa0c7485cfc5b"
+  integrity sha512-jnHMsrd0Mwa9Cf4IdOzbz543y4XJepXrbia2T4b6+spXC2We3t1y6K44D3mR8XMFSXMCf3/l7rCgddfx7UNVBA==
   dependencies:
     "@types/node" "*"
     "@types/qs" "*"
@@ -8635,15 +8635,24 @@
     "@types/qs" "*"
     "@types/range-parser" "*"
 
-"@types/express@*", "@types/express@^4.17.13", "@types/express@^4.17.14", "@types/express@^4.17.2":
-  version "4.17.21"
-  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.21.tgz#c26d4a151e60efe0084b23dc3369ebc631ed192d"
-  integrity sha512-ejlPM315qwLpaQlQDTjPdsUFSc6ZsP4AN6AlWnogPjQ7CVi7PYF3YVz+CY3jE2pwYf7E/7HlDAN0rV2GxTG0HQ==
+"@types/express-serve-static-core@^4.17.18", "@types/express-serve-static-core@^4.17.33":
+  version "4.17.43"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.43.tgz#10d8444be560cb789c4735aea5eac6e5af45df54"
+  integrity sha512-oaYtiBirUOPQGSWNGPWnzyAFJ0BP3cwvN4oWZQY+zUBwpVIGsKUkpBpSztp74drYcjavs7SKFZ4DX1V2QeN8rg==
   dependencies:
-    "@types/body-parser" "*"
-    "@types/express-serve-static-core" "^4.17.33"
+    "@types/node" "*"
     "@types/qs" "*"
-    "@types/serve-static" "*"
+    "@types/range-parser" "*"
+    "@types/send" "*"
+
+"@types/express@*", "@types/express@^5.0.6":
+  version "5.0.6"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-5.0.6.tgz#2d724b2c990dcb8c8444063f3580a903f6d500cc"
+  integrity sha512-sKYVuV7Sv9fbPIt/442koC7+IIwK5olP1KWeD88e/idgoJqDm3JV/YUiPwkoKK92ylff2MGxSz1CSjsXelx0YA==
+  dependencies:
+    "@types/body-parser" "*"
+    "@types/express-serve-static-core" "^5.0.0"
+    "@types/serve-static" "^2"
 
 "@types/express@4.17.14":
   version "4.17.14"
@@ -8655,6 +8664,16 @@
     "@types/qs" "*"
     "@types/serve-static" "*"
 
+"@types/express@^4.17.13", "@types/express@^4.17.14", "@types/express@^4.17.2":
+  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"
+    "@types/qs" "*"
+    "@types/serve-static" "*"
+
 "@types/fs-extra@^5.0.5":
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-5.1.0.tgz#2a325ef97901504a3828718c390d34b8426a10a1"
@@ -9073,7 +9092,15 @@
   dependencies:
     "@types/express" "*"
 
-"@types/serve-static@*", "@types/serve-static@^1.13.10":
+"@types/serve-static@*", "@types/serve-static@^2":
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-2.2.0.tgz#d4a447503ead0d1671132d1ab6bd58b805d8de6a"
+  integrity sha512-8mam4H1NHLtu7nmtalF7eyBH14QyOASmcxHhSfEoRyr0nP/YdoesEtU+uSRvMe96TW/HPTtkoKqQLl53N7UXMQ==
+  dependencies:
+    "@types/http-errors" "*"
+    "@types/node" "*"
+
+"@types/serve-static@^1.13.10":
   version "1.15.5"
   resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.15.5.tgz#15e67500ec40789a1e8c9defc2d32a896f05b033"
   integrity sha512-PDRk21MnK70hja/YF8AHfC7yIsiQHn1rcXx7ijCFBX/k+XQJhQT/gw3xekXKJvx+5SXaMMS8oqQy09Mzvz2TuQ==