diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 92a1a9c8..9b2769fa 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,7 +28,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           extensions: ${{ env.php-extensions }}
-          ini-values: zend.assertions=1
+          ini-values: zend.assertions=1, error_reporting=-1
           coverage: none # Xdebug is installed by default, so we remove it manually
 
       - uses: "ramsey/composer-install@v2"