diff --git a/sahara/plugins/mapr/services/oozie/oozie.py b/sahara/plugins/mapr/services/oozie/oozie.py
index aeee93d..691a196 100644
--- a/sahara/plugins/mapr/services/oozie/oozie.py
+++ b/sahara/plugins/mapr/services/oozie/oozie.py
@@ -120,7 +120,8 @@ class Oozie(s.Service):
     @el.provision_event(instance_reference=1)
     @g.remote_command(1)
     def _rebuild_oozie_war(self, remote, cluster_context):
-        cmd = 'cp -f /opt/mapr-repository/ext-2.2.zip %(home)s/libext/ext-2.2.zip &&' \
+        cmd = 'cp -f /opt/mapr-repository/ext-2.2.zip ' \
+              '%(home)s/libext/ext-2.2.zip &&' \
               ' %(home)s/bin/oozie-setup.sh -hadoop %(version)s' \
               ' /opt/mapr/hadoop/hadoop-%(version)s'
         args = {'home': self.home_dir(cluster_context),
diff --git a/test-requirements.txt b/test-requirements.txt
index 52c0626..51cba97 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+hacking>=1.1.0 # Apache-2.0
 
 PyMySQL>=0.7.6 # MIT License
 bandit>=1.1.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 1633d02..5c16d20 100644
--- a/tox.ini
+++ b/tox.ini
@@ -128,6 +128,12 @@ exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,tools
 # [H204] Use assert(Not)Equal to check for equality
 # [H205] Use assert(Greater|Less)(Equal) for comparison
 enable-extensions=H904,H106,H203,H204,H205
+# [E123] Closing bracket does not match indentation of opening bracket's line
+# [E226] Missing whitespace around arithmetic operator
+# [E402] Module level import not at top of file
+# [E731] Do not assign a lambda expression, use a def
+# [W503] Line break occurred before a binary operator
+ignore=E123,E226,E402,E731,W503
 
 [hacking]
 import_exceptions = sahara.i18n