diff --git a/requirements.txt b/requirements.txt
index f3df2ffc..1802001d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,5 +16,5 @@ wsgiprox>=1.5.1
 fakeredis<1.0
 tldextract
 python-dateutil
-markupsafe
+markupsafe>=2.1.1
 ua_parser