diff --git a/.github/workflows/classroom.yml b/.github/workflows/classroom.yml
index ed55a504d..77574becc 100644
--- a/.github/workflows/classroom.yml
+++ b/.github/workflows/classroom.yml
@@ -14,9 +14,14 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-      - name: 'Validate block '
+      - name: Download mempool
+        uses: GuillaumeFalourd/clone-github-repo-action@v2.3
+        with:
+          owner: 'SummerOfBitcoin'
+          repository: 'code-challenge-2024-mempool'
+      - name: Validate block
         id: validate-block
-        uses: SummerOfBitcoin/code-challenge-2024-grader@v2.2
+        uses: SummerOfBitcoin/code-challenge-2024-grader@v2.4
         with:
           test-name: 'Validate block '
           command: chmod +x ./run.sh && ./run.sh