diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@ setup(
         'tornado>=4.2,<5',
 
         # tchannel deps
-        'thriftrw>=0.4,<0.5',
+        'thriftrw>=0.4,<0.6',
         'threadloop>=1,<2',
     ],
     extras_require={
compatibility with thriftrw <I>