diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c3f0a41..5e5aa6f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,11 @@ jobs:
           composer install $COMPOSER_FLAGS
 
       - name: Test
-        run: php -d xdebug.mode=coverage -d xdebug.overload_var_dump=0 vendor/bin/phpunit
+        run: |
+          php -d error_reporting=$(php -r 'echo E_ALL & ~ E_DEPRECATED & ~ E_NOTICE;')
+              -d xdebug.mode=coverage \
+              -d xdebug.overload_var_dump=0 \
+              vendor/bin/phpunit
 
       - name: Upload coverage results to Coveralls
         env: