diff --git a/composer.json b/composer.json
index 9bfbd7d..ecb7f1b 100755
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
   "name": "dawguk/php-garmin-connect",
   "description": "A PHP adapter for interrogating the Garmin Connect \"API\"",
   "require": {
-    "php": ">=5.3.0",
+    "php": ">=7.0.0",
     "ext-curl": "*",
     "ext-json": "*"
   },