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Please run down the following list and make sure you've tried the usual "quick fixes":

• Search the issues already opened: https://github.com/googleapis/google-auth-library-python-oauthlib/issues
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Warning message:

.../python3.13/site-packages/google_auth_oauthlib/helpers.py:150: DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC).
    credentials.expiry = datetime.datetime.utcfromtimestamp(session.token["expires_at"])

Environment details

• OS type and version: MacOS 15.6.1
• Python version:3.13.3
• pip version:25.0.1
• google-auth-oauthlib version: 1.2.3

Steps to reproduce

I only see these warnings when running pytest on functions that usegoogle_auth_oauthlib