diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 6e6514db9aff..d78569b6699b 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -76,7 +76,7 @@ jobs:
       uses: shivammathur/setup-php@verbose
       with:
         php-version: '8.1'
-        extensions: grpc
+        extensions: grpc-1.63.0
     - name: Run Package Test Suites
       run: bash .github/run-package-tests.sh
 
@@ -89,7 +89,7 @@ jobs:
       uses: shivammathur/setup-php@verbose
       with:
         php-version: '8.1'
-        extensions: grpc
+        extensions: grpc-1.63.0
     - name: Run Package Test Suites
       env:
         PREFER_LOWEST: ${{ github.event.pull_request.user.login == 'release-please[bot]' && '--prefer-lowest-strict' || '--prefer-lowest' }}