diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 30d7d85..c16e633 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,9 +1,6 @@
 name: Test
 
-on:
-  push:
-    branches-ignore:
-      - 'master'
+on: [push, pull_request]
 
 jobs:
   phpunit:
@@ -24,6 +21,7 @@ jobs:
           configuration: phpunit.xml
           php_version: ${{ matrix.php-version }}
           php_extensions: bcmath gmp xdebug
+          version: 9.6.16
   phpcs:
     runs-on: ubuntu-latest