diff --git a/charts/keep/values.yaml b/charts/keep/values.yaml
index cfdec1b..7b67b0d 100644
--- a/charts/keep/values.yaml
+++ b/charts/keep/values.yaml
@@ -85,7 +85,7 @@ backend:
   podAnnotations:
     "prometheus.io/scrape": "true"
     "prometheus.io/path": "/metrics/processing"
-    "prometheus.io/port": 8080
+    "prometheus.io/port": "8080"
   podSecurityContext: {}
   securityContext: {}
   service: