diff --git a/.github/workflows/kube-linter-sample.yml b/.github/workflows/kube-linter-sample.yml
index 72bf708..0ab9192 100644
--- a/.github/workflows/kube-linter-sample.yml
+++ b/.github/workflows/kube-linter-sample.yml
@@ -11,7 +11,7 @@ jobs:
   scan:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       # This prepares directory where github/codeql-action/upload-sarif@v1 looks up report files by default.
       - name: Create ../results directory for SARIF report files
diff --git a/.github/workflows/self-test.yml b/.github/workflows/self-test.yml
index 9dc252c..998e5e2 100644
--- a/.github/workflows/self-test.yml
+++ b/.github/workflows/self-test.yml
@@ -18,7 +18,7 @@ jobs:
         version: [ latest, 0.2.3 ]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Scan 1 - should succeed
         uses: ./
@@ -47,7 +47,7 @@ jobs:
   test-with-sarif-upload:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       # Setup directory where github/codeql-action/upload-sarif@v4 looks up files by default.
       - name: Create ../results directory for sarif files
@@ -68,7 +68,7 @@ jobs:
   test-with-sarif-upload-fail:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       # Setup directory where github/codeql-action/upload-sarif@v4 looks up files by default.
       - name: Create ../results directory for sarif files
@@ -91,7 +91,7 @@ jobs:
   test-fail-on-invalid-resource:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Scan 1 - should succeed
         uses: ./
         with:
diff --git a/.github/workflows/versioning.yml b/.github/workflows/versioning.yml
index e79d9a7..669c9aa 100644
--- a/.github/workflows/versioning.yml
+++ b/.github/workflows/versioning.yml
@@ -9,7 +9,7 @@ jobs:
   update-semver:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: haya14busa/action-update-semver@v1
         with:
           major_version_tag_only: true