diff --git a/nlp/requirements.txt b/nlp/requirements.txt
index 7b8e643..50bc66d 100644
--- a/nlp/requirements.txt
+++ b/nlp/requirements.txt
@@ -57,7 +57,7 @@ Mako==1.0.7
 Markdown==3.1.1
 MarkupSafe==1.1.1
 matplotlib==3.0.3
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.4.1
 nbformat==4.4.0
 netifaces==0.10.4