diff --git a/composer.json b/composer.json
index d36f01e..484d470 100644
--- a/composer.json
+++ b/composer.json
@@ -19,13 +19,13 @@
         }
     ],
     "require": {
-        "php": "^7.2",
+        "php": "^7.2.5",
         "league/csv": "~9.0",
         "mustangostang/spyc": "~0.6",
-        "illuminate/support": "^6.0"
+        "illuminate/support": "^6.0|^7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "~8.0"
+        "phpunit/phpunit": "^8.5"
     },
     "autoload": {
         "psr-4": {