diff --git a/.github/scripts/python.sh b/.github/scripts/python.sh
index 6cc62d2b06..6f5643fc75 100644
--- a/.github/scripts/python.sh
+++ b/.github/scripts/python.sh
@@ -83,6 +83,6 @@ cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} \
 make -j2 install
 
 cd $GITHUB_WORKSPACE/build/python
-$PYTHON setup.py install --user --prefix=
+pip install --user --install-option="--prefix=" .
 cd $GITHUB_WORKSPACE/python/gtsam/tests
 $PYTHON -m unittest discover -v