diff --git a/README.md b/README.md
index 0ecee3f..306fb07 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ Add the following step to your workflow configuration:
 
 ```yml
 steps:
-  - uses: actions/checkout@v3
+  - uses: actions/checkout@v4
   - uses: hadolint/hadolint-action@v3.1.0
     with:
       dockerfile: Dockerfile