diff --git a/composer.json b/composer.json
index 35e179e..70796db 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     "juststeveking/uri-builder": "^1.1",
     "nyholm/psr7": "^1.3",
     "php-di/php-di": "^6.3",
-    "symfony/http-client": "^5.1"
+    "symfony/http-client": "^5.1|^6.0"
   },
   "require-dev": {
     "php-http/mock-client": "^1.4",