diff --git a/tflearn/requirements.txt b/tflearn/requirements.txt
old mode 100755
new mode 100644
index 9f1e1ff..720ca48
--- a/tflearn/requirements.txt
+++ b/tflearn/requirements.txt
@@ -18,7 +18,7 @@ jupyter-console==5.1.0
 jupyter-core==4.3.0
 MarkupSafe==1.0
 matplotlib==2.0.0
-mistune==0.7.4
+mistune==2.0.3
 nbconvert==5.1.1
 nbformat==4.3.0
 notebook==4.4.1