diff --git a/README.md b/README.md
index 9ac6ff7..660fb1f 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Template Docker action
 ```yaml
 ...
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Docker Action
         uses: tj-actions/docker-action@v1
 ```