diff --git a/DeepPATH_code/requirements.txt b/DeepPATH_code/requirements.txt
old mode 100755
new mode 100644
index 01cc97b..45a1f4e
--- a/DeepPATH_code/requirements.txt
+++ b/DeepPATH_code/requirements.txt
@@ -102,7 +102,7 @@ Mako==1.0.7
 Markdown==2.6.11
 MarkupSafe==1.0
 matplotlib==3.2.2
-mistune==0.8.3
+mistune==2.0.3
 mock==2.0.0
 more-itertools==4.3.0
 moto==1.3.4