diff --git a/.github/workflows/zz-defaultbackend.yml b/.github/workflows/zz-defaultbackend.yml
old mode 100755
new mode 100644
index 0998b7d..a34654c
--- a/.github/workflows/zz-defaultbackend.yml
+++ b/.github/workflows/zz-defaultbackend.yml
@@ -15,7 +15,7 @@ jobs:
     outputs:
       image: ${{ steps.prepare.outputs.image }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: docker/setup-qemu-action@v1
     - uses: docker/setup-buildx-action@v1
       with:
diff --git a/.github/workflows/zz-heapster.yml b/.github/workflows/zz-heapster.yml
old mode 100755
new mode 100644
index 658733f..cd0a5b4
--- a/.github/workflows/zz-heapster.yml
+++ b/.github/workflows/zz-heapster.yml
@@ -15,7 +15,7 @@ jobs:
     outputs:
       image: ${{ steps.prepare.outputs.image }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: docker/setup-qemu-action@v1
     - uses: docker/setup-buildx-action@v1
       with: