diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0faa04d..34a962a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@ jobs:
           configuration: phpunit.xml
           php_version: ${{ matrix.php-version }}
           php_extensions: bcmath gmp xdebug
-          version: 10
+          version: 10.5.20
         env:
           XDEBUG_MODE: coverage
   phpcs: