diff --git a/requirement.txt b/requirement.txt
index e55e27f..1328c74 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -39,7 +39,7 @@ matplotlib==2.2.2
 mccabe==0.6.1
 mistune==0.8.3
 mock==2.0.0
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 notebook==5.6.0
 numpy==1.15.0