diff --git a/composer.json b/composer.json
index cd944b2..61dc73c 100644
--- a/composer.json
+++ b/composer.json
@@ -3,6 +3,7 @@
     "type": "library",
     "license": "MIT",
     "keywords": [
+        "dev",
         "php",
         "swoole",
         "testing"