diff --git a/.github/workflows/default-tests.yml b/.github/workflows/default-tests.yml
index b9d70a4..bab77c4 100644
--- a/.github/workflows/default-tests.yml
+++ b/.github/workflows/default-tests.yml
@@ -7,7 +7,7 @@ jobs:
     name: Run checkstyle
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Set up JDK 17
@@ -44,7 +44,7 @@ jobs:
           '26'
         ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Set up JDK ${{ matrix.java_version }}
@@ -104,7 +104,7 @@ jobs:
             gradle_version: '7.6.6'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - name: Set up JDK ${{ matrix.java_version }}
@@ -118,7 +118,7 @@ jobs:
       - name: Setup TEMP_DIR
         run: echo "TEMP_DIR=$(mktemp -d --tmpdir=/home/runner/work/git-commit-id-gradle-plugin/git-commit-id-gradle-plugin git-commit-id-gradle-debugging.XXXXXXXXXX)" >> $GITHUB_ENV
       - name: Checkout git-commit-id-gradle-debugging to run actual gradle integration tests
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
           repository: git-commit-id/git-commit-id-gradle-debugging