diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 302ca2d..3892000 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       # https://github.com/actions/checkout
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       # https://github.com/actions/setup-go
       - name: Set up Go
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e544f83..b98925f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,7 +9,7 @@ jobs:
     steps:
       # https://github.com/actions/checkout
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0