diff --git a/composer.json b/composer.json
index 571d838..4c8d0de 100644
--- a/composer.json
+++ b/composer.json
@@ -16,8 +16,7 @@
     }
   },
   "require": {
-    "php": "^7.0",
-    "roave/security-advisories": "dev-master",
+    "php": "^7.1.13",
     "guzzlehttp/guzzle": "^6.3"
   },
   "require-dev": {