diff --git a/requirements.txt b/requirements.txt
index c0a9254..59d6856 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,11 +13,11 @@
 testrepository>=0.0.18
 pyOpenSSL>=0.14
 oslo.concurrency>=2.3.0 # Apache-2.0
-oslo.config>=2.3.0 # Apache-2.0
+oslo.config>=2.6.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=1.8.0 # Apache-2.0
-oslo.serialization>=1.4.0 # Apache-2.0
-oslo.utils>=2.0.0 # Apache-2.0
+oslo.serialization>=1.10.0 # Apache-2.0
+oslo.utils!=2.6.0,>=2.4.0 # Apache-2.0
 six>=1.9.0
 iso8601>=0.1.9
 fixtures>=1.3.1
diff --git a/tempest/scenario/test_network_v6.py b/tempest/scenario/test_network_v6.py
index 3df92cf..f82e7e4 100644
--- a/tempest/scenario/test_network_v6.py
+++ b/tempest/scenario/test_network_v6.py
@@ -188,21 +188,15 @@
         self._check_connectivity(sshv4_1, ips_from_api_2['4'])
         self._check_connectivity(sshv4_2, ips_from_api_1['4'])
 
-        # Some VM (like cirros) may not have ping6 utility
-        result = sshv4_1.exec_command('whereis ping6')
-        is_ping6 = False if result == 'ping6:\n' else True
-        if is_ping6:
-            for i in range(n_subnets6):
-                self._check_connectivity(sshv4_1,
-                                         ips_from_api_2['6'][i])
-                self._check_connectivity(sshv4_1,
-                                         self.subnets_v6[i].gateway_ip)
-                self._check_connectivity(sshv4_2,
-                                         ips_from_api_1['6'][i])
-                self._check_connectivity(sshv4_2,
-                                         self.subnets_v6[i].gateway_ip)
-        else:
-            LOG.warning('Ping6 is not available, skipping')
+        for i in range(n_subnets6):
+            self._check_connectivity(sshv4_1,
+                                     ips_from_api_2['6'][i])
+            self._check_connectivity(sshv4_1,
+                                     self.subnets_v6[i].gateway_ip)
+            self._check_connectivity(sshv4_2,
+                                     ips_from_api_1['6'][i])
+            self._check_connectivity(sshv4_2,
+                                     self.subnets_v6[i].gateway_ip)
 
     def _check_connectivity(self, source, dest):
         self.assertTrue(
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index d4bddc0..678fcfc 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -11,7 +11,6 @@
 #    under the License.
 
 from oslo_log import log
-from tempest_lib import decorators
 
 from tempest.common.utils import data_utils
 from tempest.common import waiters
@@ -164,7 +163,6 @@
         ssh_client = self._ssh_to_server(instance_from_snapshot, keypair)
         self._check_content_of_written_file(ssh_client, text)
 
-    @decorators.skip_because(bug='1489581')
     @test.idempotent_id('36c34c67-7b54-4b59-b188-02a2f458a63b')
     @test.services('compute', 'volume', 'image')
     def test_create_ebs_image_and_check_boot(self):