diff --git a/package.json b/package.json
index 355c2b63f..cf47ab22a 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "@types/mocha": "^9.0.0",
     "@types/mv": "^2.1.0",
     "@types/ncp": "^2.0.1",
-    "@types/node": "^18.0.0",
+    "@types/node": "^20.0.0",
     "@types/proxyquire": "^1.3.28",
     "@types/sinon": "^10.0.0",
     "@types/tmp": "^0.2.0",
diff --git a/system-test/fixtures/sample/package.json b/system-test/fixtures/sample/package.json
index f32bff37d..f4596200d 100644
--- a/system-test/fixtures/sample/package.json
+++ b/system-test/fixtures/sample/package.json
@@ -16,7 +16,7 @@
     "@google-cloud/pubsub": "file:./pubsub.tgz"
   },
   "devDependencies": {
-    "@types/node": "^18.0.0",
+    "@types/node": "^20.0.0",
     "typescript": "^4.6.4",
     "gts": "^3.1.0"
   }