diff --git a/lower-constraints.txt b/lower-constraints.txt
index e10dfa1..3c9a0b5 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -3,7 +3,7 @@ doc8==0.6.0
 enum34==1.0.4
 fixtures==3.0.0
 flake8-import-order==0.13
-hacking==1.0.0
+hacking==3.0.0
 mock==2.0
 openstacksdk==0.29.0
 pbr==2.0.0
diff --git a/test-requirements.txt b/test-requirements.txt
index fffd808..bc9b6fb 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@ coverage!=4.4,>=4.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 flake8-import-order>=0.13 # LGPLv3
 fixtures>=3.0.0 # Apache-2.0/BSD
-hacking>=1.0.0 # Apache-2.0
+hacking>=3.0.0,<3.1.0 # Apache-2.0
 mock>=2.0 # BSD
 stestr>=1.0.0 # Apache-2.0
 testtools>=2.2.0 # MIT