diff --git a/.github/workflows/docker-ci.yml b/.github/workflows/docker-ci.yml
index 1dbcbf0..8dcd651 100644
--- a/.github/workflows/docker-ci.yml
+++ b/.github/workflows/docker-ci.yml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       # skips notification
       - name: Docker CI
@@ -66,7 +66,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Docker CI
         uses: ./docker-template-action
diff --git a/.github/workflows/test-bootstrap.yml b/.github/workflows/test-bootstrap.yml
index d917431..a8fbd05 100644
--- a/.github/workflows/test-bootstrap.yml
+++ b/.github/workflows/test-bootstrap.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: "Invalid kubeconfig"
         run: |
diff --git a/.github/workflows/test-discord.yml b/.github/workflows/test-discord.yml
index ca6df90..523aafb 100644
--- a/.github/workflows/test-discord.yml
+++ b/.github/workflows/test-discord.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: "Set message content"
         id: message
diff --git a/.github/workflows/test-helm-dependencies.yml b/.github/workflows/test-helm-dependencies.yml
index 65dc221..a4a562c 100644
--- a/.github/workflows/test-helm-dependencies.yml
+++ b/.github/workflows/test-helm-dependencies.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Helm Dependencies
         uses: ./helm-dependencies-action
diff --git a/.github/workflows/test-helm-lint.yml b/.github/workflows/test-helm-lint.yml
index e010286..c3da834 100644
--- a/.github/workflows/test-helm-lint.yml
+++ b/.github/workflows/test-helm-lint.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Helm Lint
         uses: ./helm-lint-action
diff --git a/.github/workflows/test-kube-do.yml b/.github/workflows/test-kube-do.yml
index a4b7bda..a082e4b 100644
--- a/.github/workflows/test-kube-do.yml
+++ b/.github/workflows/test-kube-do.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       # required to access cluster definition
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Provision
         uses: ./kube-do-action
diff --git a/.github/workflows/test-kube-secrets.yml b/.github/workflows/test-kube-secrets.yml
index 8d22ac0..8618fa3 100644
--- a/.github/workflows/test-kube-secrets.yml
+++ b/.github/workflows/test-kube-secrets.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: "Invalid kubeconfig"
         run: |