diff --git a/composer.json b/composer.json
index b44c0c3..a652ab2 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,8 @@
     "homepage": "http://github.com/cyber-duck/silverstripe-google-tag-manager",
     "keywords": [
         "silverstripe",
+        "silverstripe 4",
+        "gtm",
         "google tag manager",
         "website tracking",
         "google analytics"