diff --git a/capstone/requirements.txt b/capstone/requirements.txt
index 7bef2fac..0514011e 100644
--- a/capstone/requirements.txt
+++ b/capstone/requirements.txt
@@ -30,7 +30,7 @@ kiwisolver==1.0.1
 Markdown==3.1
 MarkupSafe==1.1.1
 matplotlib==3.0.3
-mistune==0.8.4
+mistune==2.0.3
 mkl-fft==1.0.10
 mkl-random==1.0.2
 mock==2.0.0