diff --git a/digid_eherkenning/_xml.py b/digid_eherkenning/_xml.py
index e6470c9..45bda52 100644
--- a/digid_eherkenning/_xml.py
+++ b/digid_eherkenning/_xml.py
@@ -4,6 +4,7 @@
 Inspired by https://github.com/mvantellingen/python-zeep/pull/1179/ as their solution
 for the deprecated defusedxml.lxml module and the defaults applied in defusedxml.lxml.
 """
+
 from lxml.etree import XMLParser, parse as _parse
 
 
diff --git a/setup.cfg b/setup.cfg
index e0934bd..72136df 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,7 +39,6 @@ install_requires =
     django-simple-certmanager
     django-solo
     lxml
-    defusedxml>=0.7.0
     furl
     maykin-python3-saml
 tests_require =
diff --git a/tests/mixins.py b/tests/mixins.py
index e8bd554..6103565 100644
--- a/tests/mixins.py
+++ b/tests/mixins.py
@@ -1,6 +1,7 @@
 """
 TODO: replace with pytest fixtures?
 """
+
 from digid_eherkenning.models import DigidConfiguration, EherkenningConfiguration