diff --git a/requirements.txt b/requirements.txt
index 97472289..3647bb5e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-Django>=2.2
+Django>=2.2,<4.0
 django-bootstrap4-form
 celery
 email-reply-parser
 akismet
-markdown
+markdown<3.0
 beautifulsoup4
 lxml
 simplejson