diff --git a/docs/environment.yml b/docs/environment.yml
index 54ae441f9..296b9cb15 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -20,3 +20,4 @@ dependencies:
   - sphinx <4.0.0
   - sphinx-markdown-tables
   - docutils
+  - jinja2 <3.1