diff --git a/README.md b/README.md
index 0f866c0..0bc73cb 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@master
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
       - name: changelog