diff --git a/src/lib/charm/openstack/ovn_central.py b/src/lib/charm/openstack/ovn_central.py
index 9976334..06bb3d0 100644
--- a/src/lib/charm/openstack/ovn_central.py
+++ b/src/lib/charm/openstack/ovn_central.py
@@ -310,20 +310,26 @@ class BaseOVNCentralCharm(charms_openstack.charm.OpenStackCharm):
         tls_objects = self.get_certs_and_keys(
             certificates_interface=certificates_interface)
 
-        for tls_object in tls_objects:
-            with open(
-                    self.options.ovn_ca_cert, 'w') as crt:
-                chain = tls_object.get('chain')
-                if chain:
-                    crt.write(tls_object['ca'] + os.linesep + chain)
-                else:
-                    crt.write(tls_object['ca'])
+        with charms_openstack.charm.utils.is_data_changed(
+                'configure_tls.tls_objects', tls_objects) as changed:
+            for tls_object in tls_objects:
+                with open(
+                        self.options.ovn_ca_cert, 'w') as crt:
+                    chain = tls_object.get('chain')
+                    if chain:
+                        crt.write(tls_object['ca'] + os.linesep + chain)
+                    else:
+                        crt.write(tls_object['ca'])
 
-            self.configure_cert(self.ovn_sysconfdir(),
-                                tls_object['cert'],
-                                tls_object['key'],
-                                cn='host')
-            break
+                self.configure_cert(self.ovn_sysconfdir(),
+                                    tls_object['cert'],
+                                    tls_object['key'],
+                                    cn='host')
+                if changed:
+                    # The `ovn-northd` daemon will not detect changes to the
+                    # certificate data and needs to be restarted. LP: #1895303
+                    self.service_reload('ovn-northd')
+                break
 
     def configure_ovn_listener(self, db, port_map):
         """Create or update OVN listener configuration.
diff --git a/unit_tests/test_lib_charms_ovn_central.py b/unit_tests/test_lib_charms_ovn_central.py
index cf731f4..c41d15c 100644
--- a/unit_tests/test_lib_charms_ovn_central.py
+++ b/unit_tests/test_lib_charms_ovn_central.py
@@ -226,6 +226,10 @@ class TestOVNCentralCharm(Helper):
             'ca': 'fakeca',
             'chain': 'fakechain',
         }]
+        self.patch_target('service_reload')
+        self.patch('charms_openstack.charm.utils.is_data_changed',
+                   name='is_data_changed')
+        self.is_data_changed().__enter__.return_value = False
         with mock.patch('builtins.open', create=True) as mocked_open:
             mocked_file = mock.MagicMock(spec=io.FileIO)
             mocked_open.return_value = mocked_file
@@ -240,6 +244,10 @@ class TestOVNCentralCharm(Helper):
                 'fakecert',
                 'fakekey',
                 cn='host')
+            self.assertFalse(self.service_reload.called)
+            self.is_data_changed().__enter__.return_value = True
+            self.target.configure_tls()
+            self.service_reload.assert_called_once_with('ovn-northd')
 
     def test_configure_ovn_listener(self):
         self.patch_object(ovn_central.ch_ovsdb, 'SimpleOVSDB')