You should consider using the new package instead of Polly.Extensions.Http

[ngoquoctoandev]

I found a reference to the Polly.Extensions.Http package in your project, and this version is outdated since 2019, no longer supported by Polly, while the alternative version Microsoft.Extensions.Http.Resilience is recommended.
Also replace the Microsoft.Extensions.Http.Polly package with Microsoft.Extensions.Http.Resilience.
So my suggestion is that you update all your packages to the latest version.

Oh, and you should also support .NET9

Thank you for creating the wonderful Deepgram.