diff --git a/src/openforms/contrib/kvk/tests/base.py b/src/openforms/contrib/kvk/tests/base.py
index 6dd6a3e9e1..296afb9d55 100644
--- a/src/openforms/contrib/kvk/tests/base.py
+++ b/src/openforms/contrib/kvk/tests/base.py
@@ -3,8 +3,6 @@
 from typing import Literal
 from unittest.mock import patch
 
-from simple_certmanager.constants import CertificateTypes
-from simple_certmanager.test.factories import CertificateFactory
 from zgw_consumers.constants import APITypes, AuthTypes
 from zgw_consumers.test.factories import ServiceFactory