Updated composer.json

Author: Xety

composer.json

@@ -17,12 +17,11 @@
         }
     ],
     "require": {
-        "php": ">=7.3",
-        "skinnybot/skinny": "~2.0"
+        "php": "^7.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "~8.0",
-        "squizlabs/php_codesniffer": "~3.0"
+        "phpunit/phpunit": "^9.0",
+        "squizlabs/php_codesniffer": "^3.0"
     },
     "autoload": {
         "psr-4": {