diff --git a/composer.json b/composer.json
index 8275094..fc15d01 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
     },
     "minimum-stability": "stable",
     "require": {
-        "php": ">=5.5.9",
+        "php": ">=7.1.0",
         "symfony/symfony": "^3.4",
         "doctrine/orm": "^2.5",
         "doctrine/doctrine-bundle": "^1.4",