diff --git a/requirements.txt b/requirements.txt
index b320b9f..ee96042 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ kombu==3.0.23
 mando==0.8.2
 mccabe==0.2.1
 pytz==2014.7
-radon==1.1.1
+radon==6.0.1
 six==1.8.0
 virtualenv==1.11.4
 waitress>=1.4.2