diff --git a/README.md b/README.md
index e800af7..9ef3285 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ A Bootstring encoding of Unicode for Internationalized Domain Names in Applicati
 ## Install
 
 ```
-composer require true/punycode:*
+composer require true/punycode:~1.0
 ```
 
 
diff --git a/composer.json b/composer.json
index ad69f6e..350cacd 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,6 @@
 {
 	"name": "true/punycode",
+	"version": "1.0.0",
 	"type": "library",
 	"description": "A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)",
 	"keywords": ["IDNA", "punycode"],