diff --git a/README.md b/README.md
index e2c8d7f..cee7ee1 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ If you use [Composer][4], you can install Sept Coding Standard in your project w
 command:
 
 ```BASH
-composer require --dev 1sept/sept-coding-standard
+composer require --dev 1sept/sept-coding-standard "dev-main"
 ```
 
 Optional: To install coding standard automatically edit your composer script: