diff --git a/requirements.txt b/requirements.txt
index b73e20d..449527a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ kiwisolver==1.0.1
 MarkupSafe==1.0
 matplotlib==2.2.2
 mistune==0.8.3
-nbconvert==5.4.0
+nbconvert==6.3.0
 nbformat==4.4.0
 nltk==3.4.5
 notebook==5.7.8