diff --git a/HACKING.rst b/HACKING.rst
index 47e9c3a..dfcf34e 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -1,4 +1,4 @@
 python-monascaclient Style Commandments
-===============================================
+=======================================
 
 Read the OpenStack Style Commandments http://docs.openstack.org/hacking/latest
diff --git a/lower-constraints.txt b/lower-constraints.txt
index da7e917..897fce1 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -19,7 +19,7 @@ flake8==2.5.5
 future==0.16.0
 gitdb==0.6.4
 GitPython==1.0.1
-hacking==0.12.0
+hacking==1.1.0
 imagesize==0.7.1
 iso8601==0.1.11
 Jinja2==2.10
diff --git a/monascaclient/common/utils.py b/monascaclient/common/utils.py
index 5122dd2..0a99a69 100644
--- a/monascaclient/common/utils.py
+++ b/monascaclient/common/utils.py
@@ -78,7 +78,7 @@ def print_dict(d, formatters=None):
                                  caching=False, print_empty=False)
     pt.align = 'l'
 
-    for field in d.keys():
+    for field in d:
         if field in formatters:
             pt.add_row([field, formatters[field](d[field])])
         else:
diff --git a/monascaclient/v2_0/__init__.py b/monascaclient/v2_0/__init__.py
index 88e34e4..5fdf099 100644
--- a/monascaclient/v2_0/__init__.py
+++ b/monascaclient/v2_0/__init__.py
@@ -13,6 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__all__ = ['Client']
-
 from monascaclient.v2_0.client import Client
+
+__all__ = ['Client']
diff --git a/test-requirements.txt b/test-requirements.txt
index 66d4078..2cac5d9 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,<1.2.0 # Apache-2.0
 bandit>=1.1.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0