diff --git a/test-requirements.txt b/test-requirements.txt
index 30bd3da..0eface5 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,7 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 django-nose>=1.4.4 # BSD
 mock>=2.0.0 # BSD
-mox3!=0.19.0,>=0.7.0 # Apache-2.0
+mox3>=0.20.0 # Apache-2.0
 nodeenv>=0.9.4 # BSD
 nose # LGPL
 nose-exclude # LGPL