diff --git a/doc/requirements.txt b/doc/requirements.txt
index 60fc06b32..ac23cf656 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,5 +1,6 @@
 -e ../src/
 sphinx==2.3.*
+jinja2==3.0.*
 sphinx-rtd-theme
 sphinxcontrib-httpdomain
 sphinxcontrib-images