diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a57bca2..9b5e41b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/rank.yml b/.github/workflows/rank.yml
index 9f8860b..3c5bdda 100644
--- a/.github/workflows/rank.yml
+++ b/.github/workflows/rank.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v4