diff --git a/.github/workflows/ci-simple.yml b/.github/workflows/ci-simple.yml
index 0243d1f..c47621d 100644
--- a/.github/workflows/ci-simple.yml
+++ b/.github/workflows/ci-simple.yml
@@ -7,7 +7,7 @@ jobs:
   container:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           submodules: true
       - name: prepare environment variables
@@ -28,7 +28,7 @@ jobs:
     needs: container
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
       - name: helm lint
         run: |
           helm lint chart/ --strict
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2f7fcf0..3450a8b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
   container:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: google-github-actions/auth@v1.1.1
@@ -94,7 +94,7 @@ jobs:
     needs: container
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
       - name: prepare environment variables
         run: |
           shortSha=`echo ${GITHUB_SHA} | cut -c1-7`
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 0e06d83..7f8e33c 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
       - name: Setup Hugo