diff --git a/.github/workflows/run_tests_develop.yml b/.github/workflows/run_tests_develop.yml
index 06a3de88..0fc69b8a 100644
--- a/.github/workflows/run_tests_develop.yml
+++ b/.github/workflows/run_tests_develop.yml
@@ -101,6 +101,7 @@ jobs:
           if ${{ matrix.python-version != '3.11' }}; then python -m pip install numba; fi
           if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
           python -m pip install git+https://github.com/e2nIEE/pandapower@develop#egg=pandapower
+          pip install --upgrade setuptools
           pip install -e .
       - name: List all installed packages
         run: |
diff --git a/setup.py b/setup.py
index 358d6240..4608f4c5 100644
--- a/setup.py
+++ b/setup.py
@@ -49,9 +49,8 @@
                     "test": ["pytest", "pytest-xdist", "nbmake"],
                     "all": ["numpydoc", "sphinx", "sphinx_rtd_theme", "sphinxcontrib.bibtex",
                             "plotly", "igraph", "pytest", "pytest-xdist", "nbmake"]},
-    #packages=find_namespace_packages(where="pandapipes"),
-    #package_dir={"": "pandapipes"},
-    packages=find_namespace_packages(),
+    packages=find_namespace_packages(where="pandapipes"),
+    package_dir={"": "pandapipes"},
     include_package_data=True,
     classifiers=classifiers
 )