diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c140379..20a183f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,7 +9,7 @@ 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 4f884c3..cdf57a1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Prepare cache for Gentoo Linux
         if: |
           matrix.distribution == 'gentoo-linux'
@@ -63,7 +63,7 @@ jobs:
     runs-on: ${{ matrix.runs-on }}-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby-version }}