diff --git a/DeepPATH_code/requirements.txt b/DeepPATH_code/requirements.txt
old mode 100755
new mode 100644
index 01cc97b..cd6f26f
--- a/DeepPATH_code/requirements.txt
+++ b/DeepPATH_code/requirements.txt
@@ -111,7 +111,7 @@ msgpack==0.5.6
 msgpack-numpy==0.4.3.1
 multiprocess==0.70.6.1
 murmurhash==0.28.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.1
 neurdflib==5.0.0.post1