diff --git a/composer.json b/composer.json
index 9d38f02..c0e9c0f 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
   "name": "ccalayan/elasticsearch-for-monolog",
   "description": "A Monolog handler and formatter that makes use of the elasticsearch/elasticsearch package",
   "type": "library",
-  "keywords": ["log", "logging", "logger", "monolog", "psr3", "psr-3", "elastic", "elasticsearch"],
+  "keywords": ["log", "logging", "logger", "monolog", "psr4", "psr-4", "elastic", "elasticsearch"],
   "require": {
     "elasticsearch/elasticsearch": "^7.6"
   },