diff --git a/README.md b/README.md
index b2f4cf76ced26553885612802299d5cf8e64bae6..0e9495911836ffca6a1f3e19b372e299af276751 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ If you're using [Visual Studio Code](https://code.visualstudio.com/) we recommen
 
 ## Building and running in production mode
 
-To create an optimised version of the app:
+To create an optimized version of the app:
 
 ```bash
 npm run build