diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4c5ff61..511c856 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Extract release note
         run: |
           ruby \
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2e2afb1..0cb80a0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,7 +33,7 @@ jobs:
           - { os: macos   , ruby: "2.5" }
           - { os: windows , ruby: head }
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}