diff --git a/requirements.txt b/requirements.txt
index 91c75a8..0582e6c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ jupyter-core==4.6.3
 kiwisolver==1.2.0
 MarkupSafe==1.1.1
 matplotlib @ file:///tmp/build/80754af9/matplotlib-base_1592846008246/work
-mistune==0.8.4
+mistune==2.0.3
 mkl-fft==1.1.0
 mkl-random==1.1.1
 mkl-service==2.3.0