diff --git a/composer.json b/composer.json
index ce28838..a551033 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "type": "library",
     "require": {
         "php": "^7.0",
-        "doctrine/inflector": "^1.0"
+        "doctrine/inflector": "^1.0 || ^2.0"
     },
     "require-dev": {
         "gecko-packages/gecko-php-unit": "^2.0",