diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3dd3827..4037c41 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,11 +5,11 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive
       - name: Repository lampy
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: recursive
           ref: 'v2.0'