diff --git a/_UPDATE/Traffic-Sign-Detection/requirements.txt b/_UPDATE/Traffic-Sign-Detection/requirements.txt
index 994dc29..5957f3c 100644
--- a/_UPDATE/Traffic-Sign-Detection/requirements.txt
+++ b/_UPDATE/Traffic-Sign-Detection/requirements.txt
@@ -51,7 +51,7 @@ llvmlite==0.35.0
 Markdown==3.3.6
 MarkupSafe==1.1.1
 matplotlib==3.3.3
-mistune==0.8.4
+mistune==2.0.3
 nbclient==0.5.1
 nbconvert==6.0.7
 nbformat==5.1.2