diff --git a/.github/workflows/slowtests.yml b/.github/workflows/slowtests.yml
index 3b0f177a7..74f2b8998 100644
--- a/.github/workflows/slowtests.yml
+++ b/.github/workflows/slowtests.yml
@@ -14,6 +14,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v1
+        with:
+          ref: ${{ matrix.branch }}
       - name: Get commits from past 24 hours
         id: check_commits
         run: |