diff --git a/tests/build_pip.ps1 b/tests/build_pip.ps1
index b8e3a140..68af2952 100644
--- a/tests/build_pip.ps1
+++ b/tests/build_pip.ps1
@@ -9,6 +9,6 @@ $env:NETGEN_CCACHE = 1
 
 $pydir=$args[0]
 & $pydir\python.exe --version
-& $pydir\python.exe -m pip install scikit-build wheel numpy twine
+& $pydir\python.exe -m pip install scikit-build wheel numpy twine pybind11-stubgen
 & $pydir\python setup.py bdist_wheel -G"Visual Studio 16 2019"
 & $pydir\python -m twine upload dist\*.whl
diff --git a/tests/build_pip.sh b/tests/build_pip.sh
index 1d6f6bd3..b4e3299a 100755
--- a/tests/build_pip.sh
+++ b/tests/build_pip.sh
@@ -11,7 +11,7 @@ for pyversion in 38 39 310
 do
     export PYDIR="/opt/python/cp${pyversion}-cp${pyversion}/bin"
     echo $PYDIR
-    $PYDIR/pip install -U pytest-check numpy wheel scikit-build
+    $PYDIR/pip install -U pytest-check numpy wheel scikit-build pybind11-stubgen
 
     rm -rf _skbuild
     $PYDIR/pip wheel .
diff --git a/tests/build_pip_mac.sh b/tests/build_pip_mac.sh
index 980e4976..f07655e5 100755
--- a/tests/build_pip_mac.sh
+++ b/tests/build_pip_mac.sh
@@ -6,7 +6,7 @@ export NETGEN_CCACHE=1
 
 export PYDIR=/Library/Frameworks/Python.framework/Versions/$1/bin
 $PYDIR/python3 --version
-$PYDIR/pip3 install --user numpy twine scikit-build wheel
+$PYDIR/pip3 install --user numpy twine scikit-build wheel pybind11-stubgen
 
 export CMAKE_OSX_ARCHITECTURES='arm64;x86_64'
 $PYDIR/python3 setup.py bdist_wheel --plat-name macosx-10.15-universal2 -j10
diff --git a/tests/dockerfile b/tests/dockerfile
index 8bb9919d..d67883e9 100644
--- a/tests/dockerfile
+++ b/tests/dockerfile
@@ -29,5 +29,5 @@ RUN apt-get update && apt-get -y install \
         tcl-dev \
         tk-dev
 
-RUN python3 -m pip install pytest-check
+RUN python3 -m pip install pytest-check pybind11-stubgen
 ADD . /root/src/netgen
diff --git a/tests/dockerfile_mpi b/tests/dockerfile_mpi
index 98cf6780..df905b17 100644
--- a/tests/dockerfile_mpi
+++ b/tests/dockerfile_mpi
@@ -23,5 +23,5 @@ RUN apt-get update && apt-get -y install \
         tcl-dev \
         tk-dev
 
-RUN python3 -m pip install pytest-mpi pytest-check pytest
+RUN python3 -m pip install pytest-mpi pytest-check pytest pybind11-stubgen
 ADD . /root/src/netgen