diff --git a/.github/workflows/test_petab_test_suite.yml b/.github/workflows/test_petab_test_suite.yml
index 7e9a93c494..c63a733e07 100644
--- a/.github/workflows/test_petab_test_suite.yml
+++ b/.github/workflows/test_petab_test_suite.yml
@@ -63,7 +63,7 @@ jobs:
       # retrieve test models
       - name: Download and install PEtab test suite
         run: |
-          git clone --depth 1 --branch main \
+          git clone --depth 1 --branch add_test_ic_est \
             https://github.com/PEtab-dev/petab_test_suite \
             && source ./venv/bin/activate \
             && cd petab_test_suite && pip3 install -e .