diff --git a/composer.json b/composer.json
index 868b378e..426628c0 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": "^7.1",
+        "php": "^7.2",
         "psr/log": "^1.0.1"
     },
     "require-dev": {