diff --git a/requirements.txt b/requirements.txt
index 6ad407e8..c1b77ca4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+jinja2==3.0.3
 Sphinx==3.5.3
 sphinx-tabs==1.3.0
 sphinx-rtd-theme==0.5.2