diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index f148b318..160a0df9 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -38,14 +38,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set up pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
           node-version: '20'
           cache: 'pnpm'
           cache-dependency-path: frontend/pnpm-lock.yaml
-      - name: Set up pnpm
-        uses: pnpm/action-setup@v2
       - name: Install dependencies
         working-directory: frontend
         run: pnpm install --frozen-lockfile