diff --git a/.github/workflows/changelog_draft.yml b/.github/workflows/changelog_draft.yml
index ea219c7f..ec272e5d 100644
--- a/.github/workflows/changelog_draft.yml
+++ b/.github/workflows/changelog_draft.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: namespace-profile-ubuntu-small
     steps:
       - name: Check out code
-        uses: namespacelabs/nscloud-checkout-action@938f5d2d403d6224d9a0c0dc559b1dae09c2ede4 # v8.1.1
+        uses: namespacelabs/nscloud-checkout-action@445c25d7009680597d73eb03c4e1cd5be522ed73 # v9.0.0
         with:
           # Check out the default branch (not the release tag) so the skill
           # files and scripts are always available — older release tags may
diff --git a/.github/workflows/feature_flag_cleanup.yml b/.github/workflows/feature_flag_cleanup.yml
index 280dc66c..dcfe10de 100644
--- a/.github/workflows/feature_flag_cleanup.yml
+++ b/.github/workflows/feature_flag_cleanup.yml
@@ -25,7 +25,7 @@ jobs:
       artifact_url: ${{ steps.upload_feature_flag_log.outputs.artifact-url }}
     steps:
       - name: Check out code
-        uses: namespacelabs/nscloud-checkout-action@938f5d2d403d6224d9a0c0dc559b1dae09c2ede4 # v8.1.1
+        uses: namespacelabs/nscloud-checkout-action@445c25d7009680597d73eb03c4e1cd5be522ed73 # v9.0.0
         with:
           fetch-depth: 0
 
@@ -155,7 +155,7 @@ jobs:
       contents: read
     steps:
       - name: Check out code
-        uses: namespacelabs/nscloud-checkout-action@938f5d2d403d6224d9a0c0dc559b1dae09c2ede4 # v8.1.1
+        uses: namespacelabs/nscloud-checkout-action@445c25d7009680597d73eb03c4e1cd5be522ed73 # v9.0.0
         with:
           ref: ${{ needs.analyze.outputs.analyzed_sha }}
           fetch-depth: 0
@@ -212,7 +212,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Check out code
-        uses: namespacelabs/nscloud-checkout-action@938f5d2d403d6224d9a0c0dc559b1dae09c2ede4 # v8.1.1
+        uses: namespacelabs/nscloud-checkout-action@445c25d7009680597d73eb03c4e1cd5be522ed73 # v9.0.0
         with:
           ref: ${{ needs.analyze.outputs.analyzed_sha }}
           fetch-depth: 0