diff --git a/requirements.txt b/requirements.txt
index 486202b..3d312e2 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,7 @@
 decorator>=3.4.0
 flake8>=2.5.1
 fluent-logger>=0.4.3
+klein>=15.3.1
 nose>=1.3.7
 mock>=1.3.0
 netifaces>=0.10.4