diff --git a/src/requirements.txt b/src/requirements.txt
index da72180..8c195ce 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -93,7 +93,7 @@ Markdown==2.6.11
 MarkupSafe==1.0
 matplotlib==2.1.2
 mccabe==0.6.1
-mistune==0.8.3
+mistune==2.0.3
 mpmath==1.0.0
 msgpack-python==0.5.1
 multipledispatch==0.4.9