diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2a7c37..a0c31c4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     timeout-minutes: 25
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.13
         uses: actions/setup-python@v5