diff --git a/docs/docs_requirements.txt b/docs/docs_requirements.txt
index 9253ea5648..d47d6c3107 100644
--- a/docs/docs_requirements.txt
+++ b/docs/docs_requirements.txt
@@ -10,3 +10,5 @@ plotnine
 numpy
 plotly
 nbsphinx
+# 3.1.0 is buggy
+jinja2!=3.1.0