diff --git a/requirements.txt b/requirements.txt
index f183b0d..2c7d29c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ Keras==2.3.1
 Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 matplotlib==3.1.3
-mistune==0.8.4
+mistune==2.0.3
 numpy==1.18.1
 opencv-python==4.2.0
 pandas==1.0.1