diff --git a/requirements.txt b/requirements.txt
index a2c4ccaa..65fb1535 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,6 @@ PyYAML>=3.1.0
 requests>=1.1
 six>=1.5.2
 SQLAlchemy>=0.8,<=0.8.99
-WSME>=0.5b6
+WSME>=0.6
 sqlalchemy-migrate>=0.8.2,!=0.8.4
 eventlet>=0.13.0