diff --git a/anaconda_requirements.txt b/anaconda_requirements.txt
index 07ff97f..cc4d46e 100644
--- a/anaconda_requirements.txt
+++ b/anaconda_requirements.txt
@@ -101,7 +101,7 @@ MarkupSafe==1.1.1
 matplotlib==3.1.1
 mccabe==0.6.1
 meshio==3.2.15
-mistune==0.8.4
+mistune==2.0.3
 mkl-fft==1.0.15
 mkl-random==1.1.0
 mkl-service==2.3.0