diff --git a/requirements/docs.txt b/requirements/docs.txt
index e036e0bea0..6a7239ed90 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -3,7 +3,7 @@ recommonmark  # fails with badges
 m2r  # fails with multi-line text
 nbsphinx>=0.8
 pandoc>=1.0
-docutils>=0.16
+docutils>=0.16,<0.18  # Sphinx is not yet compatible with docutils >= 0.18
 sphinxcontrib-fulltoc>=1.0
 sphinxcontrib-mockautodoc