diff --git a/requirements-dev.txt b/requirements-dev.txt
index 970c3811e4b..13134d16e20 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 mock==4.0.3
 nose2[coverage_plugin]==0.11.0
 cov-core==1.15.0
-black==22.1.0
+black==22.3.0
 pycodestyle==2.8.0
 pylint==2.13.0
 splinter==0.17.0
diff --git a/tests/unit/test_webapp.py b/tests/unit/test_webapp.py
index d3eaa6a58d7..bb09e591ea0 100644
--- a/tests/unit/test_webapp.py
+++ b/tests/unit/test_webapp.py
@@ -97,12 +97,12 @@ def test_index_empty(self):
     def test_index_html_post(self):
         result = self.app.post('/', data={'q': 'test'})
         self.assertEqual(result.status_code, 308)
-        self.assertEqual(result.location, 'http://localhost/search')
+        self.assertEqual(result.location, '/search')
 
     def test_index_html_get(self):
         result = self.app.post('/?q=test')
         self.assertEqual(result.status_code, 308)
-        self.assertEqual(result.location, 'http://localhost/search?q=test')
+        self.assertEqual(result.location, '/search?q=test')
 
     def test_search_empty_html(self):
         result = self.app.post('/search', data={'q': ''})