diff --git a/face_detection_app/requirements.txt b/face_detection_app/requirements.txt
index db98b09..e055ddb 100644
--- a/face_detection_app/requirements.txt
+++ b/face_detection_app/requirements.txt
@@ -32,7 +32,7 @@ jupyter-core==4.6.3
 kiwisolver==1.1.0
 MarkupSafe==1.1.1
 matplotlib==3.1.3
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.6.1
 nbformat==5.0.4
 notebook>=6.1.5