diff --git a/composer.json b/composer.json
index b0585dd..b714636 100644
--- a/composer.json
+++ b/composer.json
@@ -46,7 +46,7 @@
     "guzzlehttp/psr7": "^2.7.0"
   },
   "require-dev": {
-    "google/cloud-tools": "^0.14.0",
+    "google/cloud-tools": "^0.15.0",
     "jetbrains/phpstorm-attributes": "^1.1",
     "phpunit/php-code-coverage": "^9.2.31",
     "phpunit/phpunit": "^9.6.20"