diff --git a/requirements.txt b/requirements.txt
index 5e6446c..2fd2e4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
--e git://github.com/mvcisback/hypothesis-cfg/
+-e git://github.com/mvcisback/hypothesis-cfg@master#egg=hypothesis-cfg
 bitarray==0.8.1
 funcy==1.7.2
 lenses==0.1.7