diff --git a/composer.json b/composer.json
index 3a7484f..f0caf0a 100644
--- a/composer.json
+++ b/composer.json
@@ -4,10 +4,10 @@
     "type": "library",
     "license": "MIT",
     "require": {
-        "php": "^7.0"
+        "php": ">=7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.0"
+        "phpunit/phpunit": ">=7.0"
     },
     "autoload": {
         "psr-4": {