diff --git a/.github/workflows/image_builds.yml b/.github/workflows/image_builds.yml
index 65678dff..496d4f73 100644
--- a/.github/workflows/image_builds.yml
+++ b/.github/workflows/image_builds.yml
@@ -28,7 +28,7 @@ jobs:
           - "watchdog-mailcow"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Docker
         run: |
           curl -sSL https://get.docker.com/ | CHANNEL=stable sudo sh
diff --git a/.github/workflows/pr_to_nightly.yml b/.github/workflows/pr_to_nightly.yml
index 57aac781..e629e5e9 100644
--- a/.github/workflows/pr_to_nightly.yml
+++ b/.github/workflows/pr_to_nightly.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Run the Action
diff --git a/.github/workflows/rebuild_backup_image.yml b/.github/workflows/rebuild_backup_image.yml
index 21c218a8..6c1d7e83 100644
--- a/.github/workflows/rebuild_backup_image.yml
+++ b/.github/workflows/rebuild_backup_image.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
diff --git a/.github/workflows/update_postscreen_access_list.yml b/.github/workflows/update_postscreen_access_list.yml
index 5d31eb9a..42502f30 100644
--- a/.github/workflows/update_postscreen_access_list.yml
+++ b/.github/workflows/update_postscreen_access_list.yml
@@ -15,7 +15,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Generate postscreen_access.cidr
       run: |