diff --git a/lower-constraints.txt b/lower-constraints.txt
index af50a228..a0c16061 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -14,7 +14,7 @@ flake8==2.5.5
 flake8-import-order==0.17.1
 future==0.16.0
 greenlet==0.4.10
-hacking==3.0.1
+hacking==3.1.0
 ifaddr==0.1.6
 iso8601==0.1.11
 keystoneauth1==3.4.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 9b3a3bcb..567e1f12 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@
 coverage!=4.4,>=4.0 # Apache-2.0
 eventlet!=0.18.3,!=0.20.1,>=0.18.2 # MIT
 flake8-import-order>=0.17.1 # LGPLv3
-hacking>=3.0.1,<3.1.0 # Apache-2.0
+hacking>=3.1.0,<3.2.0 # Apache-2.0
 stestr>=1.0.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0