Update composer.json

inhere · web-flow · commit d70278746177 · 2018-01-23T16:12:33.000+08:00
diff --git a/composer.json b/composer.json
@@ -13,7 +13,8 @@
     }
   ],
   "require": {
-    "php": ">=7.0.0"
+    "php": ">=7.0.0",
+    "psr/http-server-middleware": "^1.0"
   },
   "autoload": {
     "psr-4": {
