diff --git a/.github/workflows/cgl.yaml b/.github/workflows/cgl.yaml
index f03aad92..815cf020 100644
--- a/.github/workflows/cgl.yaml
+++ b/.github/workflows/cgl.yaml
@@ -25,7 +25,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.3
+          php-version: 5.3
           tools: composer:v2, composer-require-checker, composer-unused, cs2pr
           coverage: none