diff --git a/.github/workflows/ab.yml b/.github/workflows/ab.yml
index 9f7427b..fea1672 100644
--- a/.github/workflows/ab.yml
+++ b/.github/workflows/ab.yml
@@ -1,10 +1,12 @@
 on: push
 
 jobs:
+  runs-no: ubuntu-latest
   job1:
     steps:
     - run: pwd
     - run: ls
   job2:
+    runs-on: ubuntu-latest
     steps:
     - run: node --version