diff --git a/templates/docs/doc_requirements.txt.j2 b/templates/docs/doc_requirements.txt.j2
index 95bd62b4..61a696f3 100644
--- a/templates/docs/doc_requirements.txt.j2
+++ b/templates/docs/doc_requirements.txt.j2
@@ -9,3 +9,4 @@ sphinx<1.8.0
 sphinx-rtd-theme
 sphinxcontrib-openapi
 towncrier
+mistune<2.0.0