Update composer.json

Author: barryvdh

composer.json

@@ -46,13 +46,13 @@
         "php-http/client-implementation": "^1",
         "php-http/message": "^1.5",
         "php-http/discovery": "^1.14",
-        "php-http/guzzle7-adapter": "^0.1",
         "symfony/http-foundation": "^2.1|^3|^4|^5",
         "moneyphp/money": "^3.1"
     },
     "require-dev": {
         "omnipay/tests": "^4.1",
         "php-http/mock-client": "^1",
+        "php-http/guzzle7-adapter": "^1",
         "squizlabs/php_codesniffer": "^3.5"
     },
     "extra": {