diff --git a/requirements.txt b/requirements.txt
index 1b53596..600a258 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -142,7 +142,7 @@ maxminddb==1.4.1
 mccabe==0.6.1
 mechanize==0.4.3
 meld==3.20.1
-mistune==0.8.4
+mistune==2.0.3
 mitmproxy==4.0.4
 msgpack==0.5.6
 multidict==4.6.1