diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 3086f1600..e6aaf6424 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -37,6 +37,7 @@ jobs:
         with:
           repository: ${{ env.SUITE_REPO }}
           submodules: recursive
+          ref: 88-placeholder-poseidon
 
       - name: Checkout source code
         uses: actions/checkout@v3