diff --git a/composer.json b/composer.json
index 62651aa..a6e04eb 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,7 @@
 {
     "name": "thlib/php-curl-client",
     "description": "A very simple and lightweight cURL helper for PHP",
+    "version": "1.0.0",
     "license": "Unlicense",
     "authors": [
         {
@@ -35,10 +36,10 @@
     ],
     "require": {
         "php": ">=5.3.0",
-        "thlib/php-constants": "1.0.0",
-        "thlib/php-url": "1.0.0",
-        "thlib/php-curl-multi-basic": "dev-master",
-        "psr/http-message": "1.0.1",
+        "thlib/php-constants": "^1.0",
+        "thlib/php-url": "^1.0",
+        "thlib/php-curl-multi-basic": "^1.0",
+        "psr/http-message": "^1.0",
         "slim/psr7": "^1.0"
     }
 }