diff --git a/test-requirements.txt b/test-requirements.txt
index f143197..e0a9fac 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,6 +10,7 @@
 hacking<0.11,>=0.10.2 # Apache-2.0
 coverage>=4.0 # Apache-2.0
 django-nose>=1.4.4 # BSD
+docutils>=0.11,!=0.13.1  # OSI-Approved Open Source, Public Domain
 mock>=2.0 # BSD
 mox3>=0.7.0 # Apache-2.0
 nodeenv>=0.9.4 # BSD