diff --git a/requirements.txt b/requirements.txt
index 210e2f2..52d471e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -95,7 +95,7 @@ Markdown==3.3.3
 MarkupSafe==1.1.1
 matplotlib
 mccabe==0.6.1
-mistune==0.8.4
+mistune==2.0.3
 mkl-fft==1.0.14
 mkl-random==1.0.4
 mkl-service==2.3.0