diff --git a/tools/pip-requires b/tools/pip-requires
index 8dbfd85d31..729f950b3d 100644
--- a/tools/pip-requires
+++ b/tools/pip-requires
@@ -1,4 +1,5 @@
 eventlet>=0.9.12
+Routes>=1.12.3
 nose
 Paste
 PasteDeploy