diff --git a/README.md b/README.md
index a5bcb035..b5f52488 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,12 @@ Examples working
 composer require mcp/sdk
 ```
 
+Since this package has no tagged releases yet, it is required to extend your `composer.json`:
+```json
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+```
+
 ## ⚡ Quick Start: Stdio Server with Discovery
 
 This example demonstrates the most common usage pattern - a `stdio` server using attribute discovery.