diff --git a/.github/workflows/generate_index.yml b/.github/workflows/generate_index.yml
index 8568fb5..d49ee2d 100644
--- a/.github/workflows/generate_index.yml
+++ b/.github/workflows/generate_index.yml
@@ -16,9 +16,9 @@ jobs:
         ref: ${{ github.head_ref }}
 
     - name: Setup PHP Action
-      uses: shivammathur/setup-php@2.27.1
+      uses: shivammathur/setup-php@v2
       with:
-        php-version: '8.2'
+        php-version: '8.1'
 
     - name: Check committer
       id: check