diff --git a/base_requirements.txt b/base_requirements.txt
index e1cf2c54c..4b814dbc7 100644
--- a/base_requirements.txt
+++ b/base_requirements.txt
@@ -68,7 +68,8 @@ gunicorn
 
 # Platform-agnostic template rendering engine
 # https://github.com/pallets/jinja
-Jinja2
+# Pin to v3.0 for mkdocstrings
+Jinja2<3.1
 
 # Simple markup language for rendering HTML
 # https://github.com/Python-Markdown/markdown
diff --git a/requirements.txt b/requirements.txt
index 757cf4896..ce0e52087 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ djangorestframework==3.13.1
 drf-yasg[validation]==1.20.0
 graphene-django==2.15.0
 gunicorn==20.1.0
-Jinja2==3.1.1
+Jinja2==3.0.3
 Markdown==3.3.6
 markdown-include==0.6.0
 mkdocs-material==8.2.8