diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 55728fa..62b739d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,7 +17,7 @@ jobs:
           MYSQL_DATABASE: phalcon-migrations
           MYSQL_ROOT_PASSWORD: root
         ports:
-          - 3306/tcp
+          - "3306:3306"
         options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
       postgres:
         image: postgres:10.8