diff --git a/.github/workflows/bulk-import.yaml b/.github/workflows/bulk-import.yaml
index 981cea1..7f60a07 100644
--- a/.github/workflows/bulk-import.yaml
+++ b/.github/workflows/bulk-import.yaml
@@ -30,7 +30,7 @@ jobs:
           owner: ${{ github.repository_owner }}
 
       - name: Checkout GCSS
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: G-Research/github-terraformer
           ref: ${{ inputs.gcss_ref }}
diff --git a/.github/workflows/drift-check.yaml b/.github/workflows/drift-check.yaml
index 96c3c9f..4c82001 100644
--- a/.github/workflows/drift-check.yaml
+++ b/.github/workflows/drift-check.yaml
@@ -20,7 +20,7 @@ jobs:
     environment: schedule
     steps:
       - name: Checkout GCSS
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: G-Research/github-terraformer
           ref: ${{ inputs.gcss_ref }}
diff --git a/.github/workflows/import.yaml b/.github/workflows/import.yaml
index 8710f9f..db24475 100644
--- a/.github/workflows/import.yaml
+++ b/.github/workflows/import.yaml
@@ -35,7 +35,7 @@ jobs:
           owner: ${{ github.repository_owner }}
 
       - name: Checkout GCSS
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: G-Research/github-terraformer
           ref: ${{ inputs.gcss_ref }}
diff --git a/.github/workflows/promote-imported-configs.yaml b/.github/workflows/promote-imported-configs.yaml
index 2508748..bef4ae2 100644
--- a/.github/workflows/promote-imported-configs.yaml
+++ b/.github/workflows/promote-imported-configs.yaml
@@ -40,7 +40,7 @@ jobs:
           owner: ${{ github.repository_owner }}
 
       - name: Checkout GCSS
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: G-Research/github-terraformer
           ref: ${{ inputs.gcss_ref }}
diff --git a/.github/workflows/tf-apply.yaml b/.github/workflows/tf-apply.yaml
index e4107cf..5bd1144 100644
--- a/.github/workflows/tf-apply.yaml
+++ b/.github/workflows/tf-apply.yaml
@@ -27,7 +27,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout GCSS
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: G-Research/github-terraformer
           ref: ${{ inputs.gcss_ref }}
diff --git a/.github/workflows/tf-plan.yaml b/.github/workflows/tf-plan.yaml
index f566f55..97f90fd 100644
--- a/.github/workflows/tf-plan.yaml
+++ b/.github/workflows/tf-plan.yaml
@@ -37,7 +37,7 @@ jobs:
           owner: ${{ github.repository_owner }}
 
       - name: Checkout GCSS
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: G-Research/github-terraformer
           ref: ${{ inputs.gcss_ref }}