diff --git a/composer.json b/composer.json
index 507cf40..f6036b1 100755
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "minimum-stability": "dev",
     "require": {
-        "yurunsoft/yurun-http": "dev-master"
+        "yurunsoft/yurun-http": "^4.2"
     },
     "autoload": {
         "psr-4": {