Merge pull request #13 from luislard/fix/12

fix: be more flexible on composer constraints since we require this p…

Author: Chrico

composer.json

@@ -19,11 +19,11 @@
     "require-dev": {
         "php": ">=7.0",
         "pimple/pimple": "~3.0",
-        "phpunit/phpunit": "6.3.*",
-        "brain/monkey": "^2",
-        "dealerdirect/phpcodesniffer-composer-installer": "^0.4.2",
-        "squizlabs/php_codesniffer": "~3.2.3",
-        "inpsyde/php-coding-standards": "~0.13.1"
+        "phpunit/phpunit": "@stable",
+        "brain/monkey": "@stable",
+        "dealerdirect/phpcodesniffer-composer-installer": "@stable",
+        "squizlabs/php_codesniffer": "@stable",
+        "inpsyde/php-coding-standards": "@stable"
     },
     "autoload": {
         "psr-4": {
@@ -38,4 +38,4 @@
     "suggest": {
         "pimple/pimple": "Allows using Pimple, a small Dependency Injection Container for PHP"
     }
-}
+}