diff --git a/README.md b/README.md
index 9609f67..2f921b8 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Create a new directory and require the project using composer:
 ```text
 $ mkdir mylisp
 $ cd mylisp
-$ composer require "maddy83/madlisp dev-master"
+$ composer require maddy83/madlisp
 ```
 
 Use the `vendor/bin/madlisp` executable to start the interpreter. Start the REPL with the `-r` option: