diff --git a/requirements.txt b/requirements.txt
index 0e29859..31b6c6f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ matplotlib==2.2.2
 mistune==0.8.3
 more-itertools==4.3.0
 mpmath==1.0.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.5.0
 numpy==1.14.4