diff --git a/pip-sample/requirements.txt b/pip-sample/requirements.txt
index 680d08166..d02e9d580 100644
--- a/pip-sample/requirements.txt
+++ b/pip-sample/requirements.txt
@@ -21,7 +21,7 @@ Jinja2==2.10
 jsonschema==2.6.0
 jupyter==1.0.0
 jupyter-client==5.2.3
-jupyter-core==4.4.0
+jupyter-core==4.11.2
 kiwisolver==1.0.1
 MarkupSafe==1.0
 matplotlib==2.2.2