diff --git a/composer.json b/composer.json
index 2da4093..fea2dca 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,6 @@
 		}
 	],
 	"autoload": {
-		"ext-json": false,
 		"psr-4": {
 			"wchat\\": "wx"
 		}