diff --git a/requirements.txt b/requirements.txt
index fa39af776..6ece48cfb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,4 +15,3 @@ six>=1.9.0 # MIT
 osc-lib>=1.5.1 # Apache-2.0
 websocket-client>=0.32.0 # LGPLv2+
 tripleo-common>=7.1.0 # Apache-2.0
-instack-undercloud>=7.0.0  # Apache-2.0
diff --git a/tripleoclient/tests/v1/undercloud/test_undercloud.py b/tripleoclient/tests/v1/undercloud/test_undercloud.py
index 9e5119f9e..5436f71e8 100644
--- a/tripleoclient/tests/v1/undercloud/test_undercloud.py
+++ b/tripleoclient/tests/v1/undercloud/test_undercloud.py
@@ -35,8 +35,8 @@ class TestUndercloudInstall(TestPluginV1):
         # Get the command object to test
         self.cmd = undercloud.InstallUndercloud(self.app, None)
 
-    @mock.patch('instack_undercloud.undercloud.install')
-    def test_undercloud_install(self, mock_install):
+    @mock.patch('subprocess.check_call', autospec=True)
+    def test_undercloud_install(self, mock_subprocess):
         arglist = []
         verifylist = []
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
@@ -44,7 +44,7 @@ class TestUndercloudInstall(TestPluginV1):
         # DisplayCommandBase.take_action() returns two tuples
         self.cmd.take_action(parsed_args)
 
-        mock_install.assert_called_once_with('/usr/share/instack-undercloud')
+        mock_subprocess.assert_called_with('instack-install-undercloud')
 
 
 class TestUndercloudUpgrade(TestPluginV1):
@@ -54,9 +54,8 @@ class TestUndercloudUpgrade(TestPluginV1):
         # Get the command object to test
         self.cmd = undercloud.UpgradeUndercloud(self.app, None)
 
-    @mock.patch('instack_undercloud.undercloud.install')
     @mock.patch('subprocess.check_call', autospec=True)
-    def test_undercloud_upgrade(self, mock_subprocess, mock_install):
+    def test_undercloud_upgrade(self, mock_subprocess):
         arglist = []
         verifylist = []
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
@@ -67,9 +66,8 @@ class TestUndercloudUpgrade(TestPluginV1):
         mock_subprocess.assert_has_calls(
             [
                 mock.call(['sudo', 'yum', 'update', '-y']),
+                mock.call('instack-upgrade-undercloud'),
                 mock.call(['sudo', 'systemctl', 'restart',
                           'openstack-nova-api'])
             ]
         )
-        mock_install.assert_called_once_with('/usr/share/instack-undercloud',
-                                             upgrade=True)
diff --git a/tripleoclient/v1/undercloud.py b/tripleoclient/v1/undercloud.py
index ae46be58d..d22458c17 100644
--- a/tripleoclient/v1/undercloud.py
+++ b/tripleoclient/v1/undercloud.py
@@ -18,8 +18,6 @@
 import logging
 import subprocess
 
-from instack_undercloud import undercloud
-
 from osc_lib.command import command
 from tripleoclient import utils
 
@@ -35,7 +33,7 @@ class InstallUndercloud(command.Command):
 
         utils.ensure_run_as_normal_user()
 
-        undercloud.install('/usr/share/instack-undercloud')
+        subprocess.check_call("instack-install-undercloud")
 
 
 class UpgradeUndercloud(command.Command):
@@ -50,7 +48,7 @@ class UpgradeUndercloud(command.Command):
         utils.ensure_run_as_normal_user()
 
         subprocess.check_call(['sudo', 'yum', 'update', '-y'])
-        undercloud.install('/usr/share/instack-undercloud', upgrade=True)
+        subprocess.check_call("instack-upgrade-undercloud")
         # restart nova-api https://bugzilla.redhat.com/show_bug.cgi?id=1315467
         subprocess.check_call(['sudo', 'systemctl', 'restart',
                               'openstack-nova-api'])