diff --git a/composer.json b/composer.json
index 64c6e01..6d10ec7 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         }
     ],
     "require": {
-        "php": "7.0.*|7.1.*",
+        "php": "^7.0",
         "symfony/framework-bundle": "^3.2.5|^4.0",
         "symfony/property-info": "^3.1|^4.0",
         "exsyst/swagger": "~0.3",