diff --git "a/ChessMa\342\200\240e/requirements.txt" "b/ChessMa\342\200\240e/requirements.txt"
index 5602eed..a68b05f 100644
--- "a/ChessMa\342\200\240e/requirements.txt"
+++ "b/ChessMa\342\200\240e/requirements.txt"
@@ -17,7 +17,7 @@ jsonschema==3.2.0
 jupyter-client==5.3.4
 jupyter-core==4.6.1
 MarkupSafe==1.1.1
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.6.1
 nbformat==5.0.4
 notebook==6.0.3