diff --git a/composer.json b/composer.json
index bd77f9b..d6eed7d 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "how to setup email magento2"
     ],
     "require": {
-        "php": "~5.6.0|7.0.2|7.0.4|~7.0.6|~7.1.0|~7.1.3|~7.2.0",
+        "php": "~5.6.0|7.0.2|7.0.4|~7.0.6|~7.1.0|~7.1.3|~7.2.0|~7.3.0",
         "magento/module-backend": "100.0.*|100.1.*|100.2.*|101.0.*",
         "magento/framework": "100.0.*|100.1.*|101.0.*|102.0.*"
     },