diff --git a/openwisp_monitoring/device/tests/test_models.py b/openwisp_monitoring/device/tests/test_models.py
index 1114eb56..99af76cd 100644
--- a/openwisp_monitoring/device/tests/test_models.py
+++ b/openwisp_monitoring/device/tests/test_models.py
@@ -280,7 +280,7 @@ def test_validate_neighbors_data(self):
             dd.validate_data()
         except ValidationError as e:
             self.assertIn('Invalid data in', e.message)
-            self.assertIn("is not a 'ipv4'", e.message)
+            self.assertIn("is not valid under any of the given schemas", e.message)
         else:
             self.fail('ValidationError not raised')
 
@@ -397,7 +397,7 @@ def test_bad_address_fail(self):
             dd.validate_data()
         except ValidationError as e:
             self.assertIn('Invalid data in', e.message)
-            self.assertIn("'123\' is not a \'ipv4\'", e.message)
+            self.assertIn("is not valid under any of the given schemas", e.message)
         else:
             self.fail('ValidationError not raised')
 
@@ -410,7 +410,7 @@ def test_bad_dhcp_lease_fail(self):
             dd.validate_data()
         except ValidationError as e:
             self.assertIn('Invalid data in', e.message)
-            self.assertIn("'123\' is not a \'ipv4\'", e.message)
+            self.assertIn("is not valid under any of the given schemas", e.message)
         else:
             self.fail('ValidationError not raised')