diff --git a/.github/workflows/agent-orchestrator.yml b/.github/workflows/agent-orchestrator.yml
index 6cc9046..454020f 100644
--- a/.github/workflows/agent-orchestrator.yml
+++ b/.github/workflows/agent-orchestrator.yml
@@ -33,7 +33,7 @@ jobs:
           python tools/agents/orchestrator.py "$GITHUB_EVENT_PATH"
 
       - name: Open PR for new branch (if any)
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const fs = require('fs');
diff --git a/.github/workflows/assign-owners.yml b/.github/workflows/assign-owners.yml
index 02f710e..899be80 100644
--- a/.github/workflows/assign-owners.yml
+++ b/.github/workflows/assign-owners.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
       - name: Assign new/updated issues
         if: github.event_name == 'issues'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const owner = context.repo.owner;
@@ -41,7 +41,7 @@ jobs:
 
       - name: Batch-assign Sprint 01 issues (manual run)
         if: github.event_name == 'workflow_dispatch'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const owner = context.repo.owner;
@@ -63,7 +63,7 @@ jobs:
 
       - name: Assign PRs
         if: github.event_name == 'pull_request'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const owner = context.repo.owner;
diff --git a/.github/workflows/label-sprint-issues.yml b/.github/workflows/label-sprint-issues.yml
index ae1e388..781c27b 100644
--- a/.github/workflows/label-sprint-issues.yml
+++ b/.github/workflows/label-sprint-issues.yml
@@ -16,7 +16,7 @@ jobs:
       contents: read
     steps:
       - name: Add agent:auto label to Sprint 01 issues
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const owner = context.repo.owner;
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 1ed2ca5..b285b81 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -12,7 +12,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/github-script@v7
+      - uses: actions/github-script@v8
         with:
           script: |
             const branch = context.payload.pull_request.head.ref;
diff --git a/.github/workflows/open-pr-chore-dev-setup-warnings.yml b/.github/workflows/open-pr-chore-dev-setup-warnings.yml
index ad9197f..5f273b9 100644
--- a/.github/workflows/open-pr-chore-dev-setup-warnings.yml
+++ b/.github/workflows/open-pr-chore-dev-setup-warnings.yml
@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Create or update PR
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const owner = context.repo.owner;
diff --git a/.github/workflows/seed-issues.yml b/.github/workflows/seed-issues.yml
index bdee957..4c1c96a 100644
--- a/.github/workflows/seed-issues.yml
+++ b/.github/workflows/seed-issues.yml
@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Create labels and issues from seed file
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const fs = require('fs');