diff --git a/.forgejo/workflows/tofu-apply-k8s-wheatley.yaml b/.forgejo/workflows/tofu-apply-k8s-wheatley.yaml
index 1577012..90f3545 100644
--- a/.forgejo/workflows/tofu-apply-k8s-wheatley.yaml
+++ b/.forgejo/workflows/tofu-apply-k8s-wheatley.yaml
@@ -22,7 +22,7 @@ jobs:
       TF_VAR_proxmox_endpoint: ${{ secrets.PROXMOX_ENDPOINT }}
       TF_VAR_proxmox_api_token: ${{ secrets.PROXMOX_API_TOKEN }}
     steps:
-      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: https://github.com/opentofu/setup-opentofu@v1
         with:
           tofu_version: 1.11.5
diff --git a/.forgejo/workflows/tofu-apply-templates.yaml b/.forgejo/workflows/tofu-apply-templates.yaml
index 5d31010..7fb9c12 100644
--- a/.forgejo/workflows/tofu-apply-templates.yaml
+++ b/.forgejo/workflows/tofu-apply-templates.yaml
@@ -23,7 +23,7 @@ jobs:
       TF_VAR_proxmox_endpoint: ${{ secrets.PROXMOX_ENDPOINT }}
       TF_VAR_proxmox_api_token: ${{ secrets.PROXMOX_API_TOKEN }}
     steps:
-      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: https://github.com/opentofu/setup-opentofu@v1
         with:
           tofu_version: 1.11.5
diff --git a/.forgejo/workflows/tofu-plan-k8s-wheatley.yaml b/.forgejo/workflows/tofu-plan-k8s-wheatley.yaml
index 895ea76..049f82b 100644
--- a/.forgejo/workflows/tofu-plan-k8s-wheatley.yaml
+++ b/.forgejo/workflows/tofu-plan-k8s-wheatley.yaml
@@ -25,7 +25,7 @@ jobs:
       TF_VAR_proxmox_api_token: ${{ secrets.PROXMOX_API_TOKEN }}
       PR_NUMBER: ${{ forge.event.pull_request.number }}
     steps:
-      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: https://github.com/opentofu/setup-opentofu@v1
         with:
           tofu_version: 1.11.5
diff --git a/.forgejo/workflows/tofu-plan-templates.yaml b/.forgejo/workflows/tofu-plan-templates.yaml
index 66b2d65..1fc7717 100644
--- a/.forgejo/workflows/tofu-plan-templates.yaml
+++ b/.forgejo/workflows/tofu-plan-templates.yaml
@@ -26,7 +26,7 @@ jobs:
       TF_VAR_proxmox_api_token: ${{ secrets.PROXMOX_API_TOKEN }}
       PR_NUMBER: ${{ forge.event.pull_request.number }}
     steps:
-      - uses: https://github.com/actions/checkout@v4
+      - uses: https://github.com/actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: https://github.com/opentofu/setup-opentofu@v1
         with:
           tofu_version: 1.11.5