diff --git a/requirements.txt b/requirements.txt
index e9cbae2..75158de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -55,7 +55,7 @@ lxml==4.4.1
 MagicBaidu==0.0.9
 Markdown==3.1.1
 MarkupSafe==1.1.1
-mistune==0.8.4
+mistune==2.0.3
 more-itertools==7.2.0
 murmurhash==1.0.2
 nbconvert==5.6.1