diff --git a/tempest/api/volume/test_volumes_actions.py b/tempest/api/volume/test_volumes_actions.py
index 30c2c74..8581d16 100644
--- a/tempest/api/volume/test_volumes_actions.py
+++ b/tempest/api/volume/test_volumes_actions.py
@@ -140,6 +140,35 @@
         self.assertEqual(200, resp.status)
         self.assertIn('available', body['status'])
 
+    def _is_true(self, val):
+        return val in ['true', 'True', True]
+
+    @attr(type='gate')
+    def test_volume_readonly_update(self):
+        # Update volume readonly true
+        readonly = True
+        resp, body = self.client.update_volume_readonly(self.volume['id'],
+                                                        readonly)
+        self.assertEqual(202, resp.status)
+
+        # Get Volume information
+        resp, fetched_volume = self.client.get_volume(self.volume['id'])
+        bool_flag = self._is_true(fetched_volume['metadata']['readonly'])
+        self.assertEqual(200, resp.status)
+        self.assertEqual(True, bool_flag)
+
+        # Update volume readonly false
+        readonly = False
+        resp, body = self.client.update_volume_readonly(self.volume['id'],
+                                                        readonly)
+        self.assertEqual(202, resp.status)
+
+        # Get Volume information
+        resp, fetched_volume = self.client.get_volume(self.volume['id'])
+        bool_flag = self._is_true(fetched_volume['metadata']['readonly'])
+        self.assertEqual(200, resp.status)
+        self.assertEqual(False, bool_flag)
+
 
 class VolumesActionsTestXML(VolumesActionsTest):
     _interface = "xml"
diff --git a/tempest/services/volume/json/volumes_client.py b/tempest/services/volume/json/volumes_client.py
index 93b28a2..b4a1a68 100644
--- a/tempest/services/volume/json/volumes_client.py
+++ b/tempest/services/volume/json/volumes_client.py
@@ -246,3 +246,13 @@
         resp, body = self.post(url, post_body, self.headers)
         body = json.loads(body)
         return resp, body['transfer']
+
+    def update_volume_readonly(self, volume_id, readonly):
+        """Update the Specified Volume readonly."""
+        post_body = {
+            'readonly': readonly
+        }
+        post_body = json.dumps({'os-update_readonly_flag': post_body})
+        url = 'volumes/%s/action' % (volume_id)
+        resp, body = self.post(url, post_body, self.headers)
+        return resp, body
diff --git a/tempest/services/volume/xml/volumes_client.py b/tempest/services/volume/xml/volumes_client.py
index b1e54ed..21254aa 100644
--- a/tempest/services/volume/xml/volumes_client.py
+++ b/tempest/services/volume/xml/volumes_client.py
@@ -337,3 +337,13 @@
         resp, body = self.post(url, str(Document(post_body)), self.headers)
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
+
+    def update_volume_readonly(self, volume_id, readonly):
+        """Update the Specified Volume readonly."""
+        post_body = Element("os-update_readonly_flag",
+                            readonly=readonly)
+        url = 'volumes/%s/action' % str(volume_id)
+        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        if body:
+            body = xml_to_json(etree.fromstring(body))
+        return resp, body