diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 5ca78c94..7eb1932b 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -34,7 +34,7 @@ jobs:
           - { os: macos-latest, ruby: "2.5" }
     steps:
       - name: repo checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: load ruby, openssl
         uses: MSP-Greg/setup-ruby-pkgs@v1