[Python] TypeError: pointplot() got an unexpected keyword argument 'alpha'

import kagglehub
# Download latest version
path = kagglehub.dataset_download("jayrav13/unemployment-by-county-us")

import pandas as pd
df = pd.read_csv(path)
print(df)

import numpy as np
import seaborn as sns
import matplotlib.pyplot as plt

#Let us check for the county with the highest unemployment rate
Exp = df.groupby('Rate').max()
Exp

#Getting rows of San Juan County Colorado only
c = df.loc[(df['County']=='San Juan County') & (df['State']=='Colorado')]
#print(c)

#Plotting San Juan unemployment rate around the years surrounding 1990s Recession
fig, (ax1, ax2, ax3) = plt.subplots(1, 3,figsize=(30,8))
group = c.loc[c['Year']==1990]
sns.pointplot(group['Month'], group['Rate'], alpha=0.8, ax=ax1)

plt.show()



logs as below:
Traceback (most recent call last):
File ".\unEmploymentRate_kaggle.py", line 46, in
sns.pointplot(group['Month'], group['Rate'], alpha=0.8, ax=ax1)
TypeError: pointplot() got an unexpected keyword argument 'alpha'

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