diff --git a/tools/pip-requires b/tools/pip-requires
index 47842ff1d5..674ec2ca01 100644
--- a/tools/pip-requires
+++ b/tools/pip-requires
@@ -7,7 +7,7 @@ boto
 eventlet>=0.9.17
 kombu>=1.0.4
 lxml>=2.3
-routes==1.12.3
+routes>=1.12.3
 WebOb==1.2.3
 greenlet>=0.3.1
 PasteDeploy==1.5.0