diff --git a/README.md b/README.md
index b89260168..5a9e49f73 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Open a command console, enter your project directory and execute the following
 command to download the latest stable version of this package:
 
 ```bash
-$ composer require webeweb/core-library "~1.0@dev"
+$ composer require webeweb/core-library "~2.0@dev"
 ```
 
 This command requires you to have Composer installed globally, as explained
diff --git a/composer.json b/composer.json
index 5b5d2ef7c..29e2c04be 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.x-dev"
+            "dev-master": "2.x-dev"
         }
     }
 }