diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index c345684..caba334 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -27,7 +27,7 @@ jobs:
       Other checks --
       Deno ${{ matrix.deno-version }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         timeout-minutes: 1
       - uses: denoland/setup-deno@v2
         with:
@@ -79,11 +79,11 @@ jobs:
       - run: git config --global core.autocrlf false
         if: runner.os == 'Windows'
         timeout-minutes: 1
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           path: ./repo
         timeout-minutes: 1
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: vim-denops/denops.vim
           path: ./denops.vim
diff --git a/.github/workflows/update-dependencies.yml b/.github/workflows/update-dependencies.yml
index 0b57185..b23eab1 100644
--- a/.github/workflows/update-dependencies.yml
+++ b/.github/workflows/update-dependencies.yml
@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 5
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Generate token
         id: generate_token
         uses: getsentry/action-github-app-token@v3