diff --git a/requirements.txt b/requirements.txt
index 10f397b32..2225d7aa9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ alabaster >= 0.7.11
 Babel
 certifi
 chardet
-docutils
+docutils<0.18
 idna
 imagesize
 Jinja2