diff --git a/requirements.txt b/requirements.txt
index 399e91da8..3321520fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ geoalchemy2==0.4.2
 geojson==2.5.0
 geomet==0.3.0
 kombu==5.2.4
-Markdown==3.3.7 # at next update, please remove replace_marker() function in toc extension 
+Markdown==3.4.1 # at next update, please remove replace_marker() function in toc extension 
 phpserialize==1.3.0 # phpserialize is only required during the migration
 psycopg2==2.9.4
 pyjwt==1.7.1