diff --git a/requirements.txt b/requirements.txt
index 46969c7..b0542e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ mizani==0.6.0
 mkl-fft==1.0.15
 mkl-random==1.1.0
 mkl-service==2.3.0
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==5.0.6
 networkx==2.4
 nibabel==3.1.0