diff --git a/composer.json b/composer.json
index 144bc2f..296db4b 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,6 @@
   "license": "MIT",
   "require": {
     "php": ">=8.0",
-    "ext-json": "*",
     "psr/event-dispatcher": "^1.0"
   },
   "autoload": {
@@ -19,6 +18,5 @@
      }
   },
   "require-dev": {
-    "kwn/php-rdkafka-stubs": "^2.0"
   }
 }