diff --git a/README.md b/README.md
index 1c46eed..8561386 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 The LED clock is an add-on for round wall clocks.
-The purpose is to have LEDs on the circumference of the clock to show the progress of the time using colored light.
+The purpose is to have LEDs on the circumference of the clock to show the progress of the time using coloured light.
 
 For that you will need:
 * a WS2812b RGB LEDs strip (long enough to go around the clock)