diff --git a/code/requirements.txt b/code/requirements.txt
index 7b53495..86f5fef 100644
--- a/code/requirements.txt
+++ b/code/requirements.txt
@@ -23,7 +23,7 @@ jupyter-core==4.4.0
 kiwisolver==1.0.1
 MarkupSafe==1.1.0
 matplotlib==3.0.2
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.4.0
 nbformat==4.4.0
 nltk==3.4.4