diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 8819851812c..1bc84594ec9 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -26,7 +26,7 @@ jobs:
     name: PHP CS Fixer
     uses: GoogleCloudPlatform/php-tools/.github/workflows/code-standards.yml@main
     with:
-      config: GoogleCloudPlatform/php-tools/.php-cs-fixer.default.php
+      config: GoogleCloudPlatform/php-tools/.php-cs-fixer.default.php@main
       exclude-patterns: |
         [
           "#.*/src/V[0-9]+#",