02_feature_selection_tabular_data.ipynb failed CI

Link to the notebook:
https://github.com/aws/amazon-sagemaker-examples/blob/master/prep_data/tabular_data/02_feature_selection_tabular_data.ipynb

Error:

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Exception encountered at "In [1]":
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ModuleNotFoundError Traceback (most recent call last)
in
1 import os
2 import sys
----> 3 import plotly.express as px
4 import plotly.offline as pyo
5 import plotly.graph_objs as go

ModuleNotFoundError: No module named 'plotly'