diff --git a/requirements.txt b/requirements.txt
index a06304c9..d97eaec3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,8 +8,8 @@ stevedore>=1.5.0 # Apache-2.0
 alembic>=0.8.0
 eventlet>=0.17.4
 PasteDeploy>=1.5.0
-Routes!=2.0,!=2.1,>=1.12.3;python_version=='2.7'
-Routes!=2.0,>=1.12.3;python_version!='2.7'
+Routes>=1.12.3,!=2.0,!=2.1;python_version=='2.7'
+Routes>=1.12.3,!=2.0;python_version!='2.7'
 retrying!=1.3.0,>=1.2.3 # Apache-2.0
 WebOb>=1.2.3
 kombu>=3.0.7
diff --git a/tox.ini b/tox.ini
index 5fe8c7ee..b3d034fe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist = py27,pep8
-minversion = 1.6
+minversion = 1.8
 skipsdist = True
 
 [testenv]