diff --git a/_board/sunton_esp32_8048S050.md b/_board/sunton_esp32_8048S050.md
index 808d7d3e5..ebc25c87c 100644
--- a/_board/sunton_esp32_8048S050.md
+++ b/_board/sunton_esp32_8048S050.md
@@ -16,7 +16,7 @@ features:
 These are great "all-in-one" device that have integrated ESP32-S3 chips with 16 MB of flash and 8MB PSram. The display resolution is 800x480. This one has a display size of 5" and built in capacitive touch panel.
 
 Depending on your board variant you may need to:
- - adjust the screen display frequency using CIRCUITPY_DISPLAY_FREQUENCY in [settings.toml](https://docs.circuitpython.org/en/latest/docs/environment.html).
+ - adjust the screen display frequency using CIRCUITPY_DISPLAY_FREQUENCY (available on CircuitPython 9.2.2 or later) in [settings.toml](https://docs.circuitpython.org/en/latest/docs/environment.html).
 
 ## Technical details