diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 51a4cdf..95dc87b 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/rexml.yml b/.github/workflows/rexml.yml
index b3068c0..0396a59 100644
--- a/.github/workflows/rexml.yml
+++ b/.github/workflows/rexml.yml
@@ -18,8 +18,8 @@ jobs:
     env:
       RSS_REXML_PATH: ${{ github.workspace }}/rexml
     steps:
-      - uses: actions/checkout@v5
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with:
           path: rexml
           repository: ruby/rexml
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 07b7072..b74ad9f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,7 +28,7 @@ jobs:
         #   - runs-on: ubuntu-latest
         #     ruby-version: truffleruby
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby-version }}
@@ -50,7 +50,7 @@ jobs:
           - "3.0"
           - head
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby-version }}