diff --git a/composer.json b/composer.json
index 959f14a..13ef099 100644
--- a/composer.json
+++ b/composer.json
@@ -18,8 +18,6 @@
         "php": ">=8.2"
     },
     "require-dev": {
-        "google/cloud-tools": "dev-main",
-        "squizlabs/php_codesniffer": "^3.5",
         "phpunit/phpunit": "^10.0",
         "friendsofphp/php-cs-fixer": "^3.46"
     },
diff --git a/samples/composer.json b/samples/composer.json
index 7ccf4fe..0cf9a6f 100644
--- a/samples/composer.json
+++ b/samples/composer.json
@@ -17,8 +17,6 @@
         "googleads/data-manager-util": "@dev"
     },
     "require-dev": {
-        "google/cloud-tools": "dev-main",
-        "squizlabs/php_codesniffer": "^3.5",
         "friendsofphp/php-cs-fixer": "^3.46"
     },
     "scripts": {