diff --git a/requirements.txt b/requirements.txt
index 2271cbb..9c6583d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ Markdown==3.1.1
 MarkupSafe==1.1.1
 matplotlib==3.1.1
 memory-profiler==0.55.0
-mistune==0.8.4
+mistune==2.0.3
 #mkl-fft==1.0.14
 #mkl-random==1.0.2
 #mkl-service==2.0.2