diff --git a/src/requirements/production.txt b/src/requirements/production.txt
index d2045232..5906787f 100644
--- a/src/requirements/production.txt
+++ b/src/requirements/production.txt
@@ -20,7 +20,7 @@ django-taggit==1.3.0
 django-wkhtmltopdf==3.3.0
 future==0.18.2
 graphene-django==2.12.0
-html5lib==1.0.1
+html5lib==1.1
 icalendar==4.0.6
 ipython==7.15.0
 irc3==1.1.6