diff --git a/pip-sample/requirements.txt b/pip-sample/requirements.txt
index 74d37475..04600a50 100644
--- a/pip-sample/requirements.txt
+++ b/pip-sample/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==6.3.0b0
 nbformat==4.4.0
 nltk==3.3
 notebook==5.7.0