diff --git a/requirements.txt b/requirements.txt
index 329fc7b..d4494fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -91,7 +91,7 @@ MarkupSafe==1.0
 matplotlib==2.2.3
 mccabe==0.6.1
 menuinst==1.4.14
-mistune==0.8.3
+mistune==2.0.3
 mkl-fft==1.0.4
 mkl-random==1.0.1
 more-itertools==4.3.0