diff --git a/docs/requirements.txt b/docs/requirements.txt
index 91f3bab0956..78e61b4f74e 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -3,3 +3,4 @@ flask
 Flask-Babel
 sphinx-issues
 plantweb
+docutils==0.17.1