diff --git a/requirements.txt b/requirements.txt
index 70888ed..4fb4c53 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ lz4==4.0.1
 MarkupSafe==2.1.1
 matplotlib==3.5.2
 matplotlib-inline==0.1.3
-mistune==0.8.4
+mistune==2.0.3
 mock==4.0.3
 mujoco==2.2.0
 mujoco-py==2.1.2.14