diff --git a/.github/workflows/coding-agent.yml b/.github/workflows/coding-agent.yml
index fedb04d..40d8ac7 100644
--- a/.github/workflows/coding-agent.yml
+++ b/.github/workflows/coding-agent.yml
@@ -45,7 +45,7 @@ jobs:
         if: >-
           github.event_name == 'pull_request' &&
           steps.simulate.outcome == 'success'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             // NOTE: If user-controlled data (e.g., PR titles or bodies)
diff --git a/.github/workflows/coherence-check.yml b/.github/workflows/coherence-check.yml
index 841970f..d7673a2 100644
--- a/.github/workflows/coherence-check.yml
+++ b/.github/workflows/coherence-check.yml
@@ -15,7 +15,7 @@ jobs:
     steps:
       - name: Check for manual override
         id: check_override
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const prNumber = context.payload.pull_request.number;
@@ -111,7 +111,7 @@ jobs:
 
       - name: Apply coherence label
         if: steps.check_override.outputs.skip != 'true'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const score = parseInt('${{ steps.coherence.outputs.score }}') || 0;
@@ -154,7 +154,7 @@ jobs:
 
       - name: Comment on PR
         if: steps.check_override.outputs.skip != 'true' && steps.coherence.outputs.exit_code != '0'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const score = '${{ steps.coherence.outputs.score }}';
diff --git a/.github/workflows/snap-in-synchronization.yml b/.github/workflows/snap-in-synchronization.yml
index 645b08e..7455003 100644
--- a/.github/workflows/snap-in-synchronization.yml
+++ b/.github/workflows/snap-in-synchronization.yml
@@ -142,7 +142,7 @@ jobs:
 
       - name: Annotate snap-in on PR
         if: github.event_name == 'pull_request' && steps.snap_detection.outputs.snap_in == 'true'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const rawResult = `${{ steps.snap_detection.outputs.result }}`;
@@ -212,7 +212,7 @@ jobs:
 
       - name: Apply snap-in labels
         if: steps.snap_detection.outputs.snap_in == 'true' && github.event_name == 'pull_request'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const prNumber = context.payload.pull_request.number;