diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef7fc02..c53d9d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 1.3.1 (2024-01-15)
+* improve configuration of metrics port
+
 ## 1.3.0 (2024-01-15)
 * allow serving metrics under a different port
 * update dependencies to latest versions
diff --git a/README.md b/README.md
index 28c33db..a032693 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ oneko:
   catnipUrl:
   server:
     port: 8080
-    metricsPort:
+    metricsPort: 8080
   logging:
     level:
 ```
diff --git a/config/application-default.yaml b/config/application-default.yaml
index 1a955f2..7234461 100644
--- a/config/application-default.yaml
+++ b/config/application-default.yaml
@@ -8,7 +8,7 @@ oneko:
   catnipUrl:
   server:
     port: 8080
-    metricsPort:
+    metricsPort: 8080
   mode: production
   logging:
     level: 
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 41f56da..b3246b2 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -141,5 +141,5 @@ const (
 
 type ServerConfig struct {
 	Port        int `yaml:"port" validate:"required,number"`
-	MetricsPort int `yaml:"metricsPort" validate:"number"`
+	MetricsPort int `yaml:"metricsPort" validate:"required,number"`
 }