diff --git a/.github/workflows/apply.yml b/.github/workflows/apply.yml
index 52b4fc7..fbd0081 100644
--- a/.github/workflows/apply.yml
+++ b/.github/workflows/apply.yml
@@ -44,7 +44,7 @@ jobs:
     name: Lint + schema-check before apply
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: yamllint
         run: |
           python3 -m pip install --quiet yamllint
@@ -75,7 +75,7 @@ jobs:
     needs: validate
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Confirm the APPLY phrase
         run: |
@@ -86,7 +86,7 @@ jobs:
           echo "confirm phrase OK — proceeding."
 
       - name: Set up kubectl
-        uses: azure/setup-kubectl@v4
+        uses: azure/setup-kubectl@v5
         with:
           version: 'latest'
 
diff --git a/.github/workflows/pin-prod-images.yml b/.github/workflows/pin-prod-images.yml
index cb2be4b..8c74e0f 100644
--- a/.github/workflows/pin-prod-images.yml
+++ b/.github/workflows/pin-prod-images.yml
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Validate tag matches production regex
         env:
@@ -172,10 +172,10 @@ jobs:
       id-token: write   # for cosign keyless signing
     steps:
       - name: Install syft
-        uses: anchore/sbom-action/download-syft@v0.17.0
+        uses: anchore/sbom-action/download-syft@v0.24.0
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@v3.5.0
+        uses: sigstore/cosign-installer@v4.1.2
 
       - name: Log in to GHCR
         env:
@@ -204,7 +204,7 @@ jobs:
           echo "::notice::SBOM attached to $IMAGE"
 
       - name: Upload SBOM as workflow artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: sbom-${{ inputs.package }}-${{ inputs.tag }}
           path: sbom.spdx.json
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 4af4b10..8e26b6f 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: yamllint
         run: |