diff --git a/tests/resources/test_designers.py b/tests/resources/test_designers.py
index b6d7613..dc88f5a 100644
--- a/tests/resources/test_designers.py
+++ b/tests/resources/test_designers.py
@@ -14,6 +14,7 @@ class TestEndpoints(flask_testing.TestCase):
         db.create_all()
 
     def tearDown(self):
+        db.session.remove()
         db.drop_all()
 
     def _add_designer(self, name, username=None, territory='SE', currency='SEK'):