diff --git a/requirements.txt b/requirements.txt
index 2451752..648cf6a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ MarkupSafe==1.1.1
 matplotlib==3.0.3
 mccabe==0.6.1
 menuinst==1.4.16
-mistune==0.8.4
+mistune==2.0.3
 mkl-fft==1.0.10
 mkl-random==1.0.2
 more-itertools==6.0.0