diff --git a/test-requirements.txt b/test-requirements.txt
index cfa7441..40bcba4 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,5 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 # needed for doc build
+docutils>=0.11,!=0.13.1  # OSI-Approved Open Source, Public Domain
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0