diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 3e13827..fed7700 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -4,6 +4,8 @@ on: [push]
 
 jobs:
   build:
+    runs-on: ubuntu-latest
+
     env:
       MYSQL_DATABASE: monarc_common
       MYSQL_ROOT_PASSWORD: password