diff --git a/external_dependencies/pybind11 b/external_dependencies/pybind11
index e0f3a766..2a150736 160000
--- a/external_dependencies/pybind11
+++ b/external_dependencies/pybind11
@@ -1 +1 @@
-Subproject commit e0f3a766e951ebbf2aadb31f41eb490de5bb607e
+Subproject commit 2a150736601bb3113877bb673fb934bb60d46ec5
diff --git a/tests/pytest/test_pickling.py b/tests/pytest/test_pickling.py
index 7bbf1fa6..09e571a7 100644
--- a/tests/pytest/test_pickling.py
+++ b/tests/pytest/test_pickling.py
@@ -1,7 +1,6 @@
 
 import netgen.csg as csg
 import pickle, numpy
-from ngsolve import Draw, Mesh
 
 def test_pickle_csg():
     geo = csg.CSGeometry()