diff --git a/composer.json b/composer.json
index 5cac835..0422f2c 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
     },
 
     "require" : {
-        "php": "~5.6 | ~7.0",
+        "php": "~5.6",
         "phpspec/phpspec": "~2.0",
         "phpunit/php-code-coverage": "^3"
     },