diff --git a/site-cookbooks/kosmos_prometheus/attributes/default.rb b/site-cookbooks/kosmos_prometheus/attributes/default.rb
index d16e59b..53bca16 100644
--- a/site-cookbooks/kosmos_prometheus/attributes/default.rb
+++ b/site-cookbooks/kosmos_prometheus/attributes/default.rb
@@ -1,7 +1,7 @@
 node.default["kosmos_prometheus"]["version"] = "3.13.0"
 node.default["kosmos_prometheus"]["checksum"] = "744d93324cc024d82089921737bd797474d7f1e5dbbfd1c6b387bad258538cb9"
 
-node.default["kosmos_prometheus"]["web"]["port"] = "9090"
+node.default["kosmos_prometheus"]["web"]["port"] = 9090
 
 node.default["kosmos_prometheus"]["alertmanager"]["version"] = "0.33.0"
 node.default["kosmos_prometheus"]["alertmanager"]["checksum"] = "8ce11c42e8a6dfbbf93a59c0b193cb1329210b36d0c7ef3df7b745608675a1d1"