diff --git a/test-requirements.txt b/test-requirements.txt
index ed56c19..6281cbf 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -22,3 +22,4 @@ xvfbwrapper>=0.1.3 #license: MIT
 sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0
 reno>=1.8.0 # Apache-2.0
+docutils>=0.11,!=0.13.1  # OSI-Approved Open Source, Public Domain