diff --git a/system-test/fixtures/sample/package.json b/system-test/fixtures/sample/package.json
index 4c8c80141..6944ba083 100644
--- a/system-test/fixtures/sample/package.json
+++ b/system-test/fixtures/sample/package.json
@@ -16,7 +16,7 @@
     "@google-cloud/spanner": "file:./spanner.tgz"
   },
   "devDependencies": {
-    "@types/node": "^16.0.0",
+    "@types/node": "^18.0.0",
     "typescript": "^3.0.0",
     "gts": "^3.0.0"
   }