diff --git a/composer.json b/composer.json
index 2ea6781..b7f4929 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
     },
     "require": {
         "php": ">=7.3.0",
-        "guzzlehttp/guzzle": "~6.0",
+        "guzzlehttp/guzzle": "~7.3",
         "php-di/php-di": "^6.0"
     },
     "require-dev": {