diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4ad6cee..f83fa3c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         node-version: [18, 20, 22]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
@@ -35,7 +35,7 @@ jobs:
     name: TypeScript strict check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Use Node.js 20
         uses: actions/setup-node@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a455ba0..89f6bdd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Use Node.js 20
         uses: actions/setup-node@v4