diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index 2068ee8dc..20f2eab4b 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -281,12 +281,3 @@ add_custom_target(
           ${PYTHON_EXECUTABLE} -m unittest discover -v -s .
           DEPENDS ${GTSAM_PYTHON_DEPENDENCIES} ${GTSAM_PYTHON_TEST_FILES}
           WORKING_DIRECTORY "${GTSAM_PYTHON_BUILD_DIRECTORY}/gtsam/tests")
-
-add_custom_target(
-        python-test-unstable
-        COMMAND
-          ${CMAKE_COMMAND} -E env # add package to python path so no need to install
-          "PYTHONPATH=${GTSAM_PYTHON_BUILD_DIRECTORY}/$ENV{PYTHONPATH}"
-          ${PYTHON_EXECUTABLE} -m unittest discover -v -s .
-          DEPENDS ${GTSAM_PYTHON_DEPENDENCIES} ${GTSAM_PYTHON_TEST_FILES}
-          WORKING_DIRECTORY "${GTSAM_PYTHON_BUILD_DIRECTORY}/gtsam_unstable/tests")