diff --git a/tflearn/requirements.txt b/tflearn/requirements.txt
old mode 100755
new mode 100644
index 9f1e1ff..4a88840
--- a/tflearn/requirements.txt
+++ b/tflearn/requirements.txt
@@ -21,7 +21,7 @@ matplotlib==2.0.0
 mistune==0.7.4
 nbconvert==5.1.1
 nbformat==4.3.0
-notebook==4.4.1
+notebook==6.1.5
 numpy==1.12.1
 olefile==0.44
 packaging==16.8