diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index abd0c51..0888981 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v1
 
       - name: Use Node.js 10.x
         uses: actions/setup-node@v1