Update min PHP version

driesvints · driesvints · commit 86f1ed96db08 · 2019-09-12T15:16:15.000+02:00
diff --git a/composer.json b/composer.json
@@ -5,7 +5,7 @@
     "license": "MIT",
     "type": "project",
     "require": {
-        "php": ">=7.1.3",
+        "php": "^7.2",
         "laravel/lumen-framework": "^6.0"
     },
     "require-dev": {
