composer require fig/http-message-util

diff --git a/composer.json b/composer.json
index 2d6743d..d79d046 100644 (file)
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,8 @@
     }
   ],
   "require": {
-    "php": "^5.3.0|^7.0"
+    "php": "^5.3.0|^7.0",
+    "fig/http-message-util": "^1.1"
   },
   "require-dev": {
     "phpunit/phpunit": "4.8.*",