diff --git a/tests/requirements/base.txt b/tests/requirements/base.txt
index f011bd6de7..f805494b9b 100644
--- a/tests/requirements/base.txt
+++ b/tests/requirements/base.txt
@@ -2,7 +2,7 @@ argon2-cffi >= 16.1.0
 bcrypt
 docutils
 geoip2
-jinja2 >= 2.7
+jinja2 >= 2.7,<2.9
 numpy
 Pillow
 PyYAML