diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9b3d5357..83c450ef 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -11,7 +11,7 @@ jobs:
     name: lint
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
           go-version: '1.22'
@@ -26,7 +26,7 @@ jobs:
     name: diff
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index d77d0cca..41ea437d 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -35,7 +35,7 @@ jobs:
     name: Kubernetes
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5
diff --git a/.github/workflows/helm.yaml b/.github/workflows/helm.yaml
index 78bb7352..7afd0729 100644
--- a/.github/workflows/helm.yaml
+++ b/.github/workflows/helm.yaml
@@ -12,7 +12,7 @@ jobs:
     name: diff
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - run: make -C charts/kamaji docs
@@ -21,7 +21,7 @@ jobs:
   lint:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: azure/setup-helm@v4
         with:
           version: 3.3.4
@@ -35,7 +35,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/helm-v')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Publish Helm chart
         uses: stefanprodan/helm-gh-pages@master
         with:
diff --git a/.github/workflows/ko-build.yml b/.github/workflows/ko-build.yml
index 364204b8..b9f335d3 100644
--- a/.github/workflows/ko-build.yml
+++ b/.github/workflows/ko-build.yml
@@ -9,7 +9,7 @@ jobs:
   ko:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5