diff --git a/mega_applications/flask_web_app/requirements.txt b/mega_applications/flask_web_app/requirements.txt
index dd37af3..ff1e9ba 100644
--- a/mega_applications/flask_web_app/requirements.txt
+++ b/mega_applications/flask_web_app/requirements.txt
@@ -79,7 +79,7 @@ MarkupSafe==1.0
 matplotlib==1.5.3
 mercurial==4.2.1
 mistune==0.8.1
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 nose==1.3.7
 notebook==5.7.8