Problem with installing ESP32 board

I’m trying to install ESP32 by Espressif Systems (v3.3.5) in Arduino IDE, but I keep getting the following error:

Failed to install platform: ‘esp32:esp32:3.3.5’
Error: 4 DEADLINE_EXCEEDED: net/http: request canceled (Client.Timeout or context cancellation while reading body)

I’m able to install older versions (up to 2.0.0) without any problem, but 3.x always fails.

I’m using a SparkFun Pro Mini ESP32, and I already added the SparkFun Boards Manager URL.
Network is stable, but the download always times out.

Has anyone encountered this and found a workaround?
Is there a manual install or mirror I can use?

Thanks in advance.