diff --git a/.github/workflows/test_benchmark_collection_models.yml b/.github/workflows/test_benchmark_collection_models.yml
index 023fe077e6..3a295fb261 100644
--- a/.github/workflows/test_benchmark_collection_models.yml
+++ b/.github/workflows/test_benchmark_collection_models.yml
@@ -52,6 +52,8 @@ jobs:
         AMICI_PARALLEL_COMPILE="" pip3 install -v --user \
             $(ls -t python/sdist/dist/amici-*.tar.gz | head -1)[petab,test,vis]
 
+    - run: python3 -m pip install git+https://github.com/PEtab-dev/libpetab-python.git
+
     # retrieve test models
     - name: Download and test benchmark collection
       run: |
diff --git a/.github/workflows/test_petab_test_suite.yml b/.github/workflows/test_petab_test_suite.yml
index 7e9a93c494..e902a21370 100644
--- a/.github/workflows/test_petab_test_suite.yml
+++ b/.github/workflows/test_petab_test_suite.yml
@@ -59,6 +59,7 @@ jobs:
         run: |
           source ./venv/bin/activate \
             && pip3 install wheel pytest shyaml pytest-cov pysb
+            && python3 -m pip install git+https://github.com/PEtab-dev/libpetab-python.git
 
       # retrieve test models
       - name: Download and install PEtab test suite