diff --git a/composer.json b/composer.json
index 7b07c3a..96f005c 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": "^7.0",
+        "php": "^7.1.3",
         "illuminate/contracts": "5.5.*|5.6.*",
         "illuminate/http": "5.5.*|5.6.*",
         "illuminate/support": "5.5.*|5.6.*",