diff --git a/README.md b/README.md
index 4549439..00f46cb 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@ Carrier Vanity Name is a very simple app to change the carrier names on unrooted
 
 The changed names will persist through reboots. To revert them back, click the reset button in the app.
 
+The app can also override the ISO country code of your SIM card. This can be useful to spoof your location to some region-locked apps like the Pixel Thermometer.
+
 The app uses [Shizuku](https://shizuku.rikka.app/) to achieve this using carrier config overrides. This method was inspired by Kyujin Cho's [pixel-volte-patch](https://github.com/kyujin-cho/pixel-volte-patch), which uses the same method to enable VoLTE on some Google Pixel and LG devices.
 
 **WARNING**: Anything using Shizuku might potentially cause harm to your device (and the data on it). I'm not responsible for any damage that might be caused by this app.