diff --git a/requirements.txt b/requirements.txt
index 2dd35ab..1ebba87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ mapclassify==2.2.0
 MarkupSafe==1.1.1
 matplotlib==3.2.1
 mercantile==1.1.2
-mistune==0.8.4
+mistune==2.0.3
 more-itertools==8.2.0
 munch==2.5.0
 nbconvert==5.6.1