diff --git a/composer.json b/composer.json
index 3d28881..139878b 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         "psr/http-client": "^1.0",
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0",
-        "symfony/options-resolver": "^3.4 || ^4.0"
+        "symfony/options-resolver": "^3.4 || ^4.0 || ^5.0"
     },
     "require-dev": {
         "guzzlehttp/psr7": "^1.4",