diff --git a/README.md b/README.md
index 93cd47b..d650d93 100644
--- a/README.md
+++ b/README.md
@@ -27,9 +27,9 @@ jobs:
     name: Slack Notification
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
     - name: Slack Notification
-      uses: rtCamp/action-slack-notify@master
+      uses: rtCamp/action-slack-notify@v2.0.0
       env:
         SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
 ```