diff --git a/internal/conf/conf.go b/internal/conf/conf.go
index 68627f22..e37b5462 100644
--- a/internal/conf/conf.go
+++ b/internal/conf/conf.go
@@ -216,11 +216,11 @@ func (conf *Conf) CheckAndFillMissing() error {
 	}
 
 	if conf.MetricsAddress == "" {
-		conf.MetricsAddress = ":9998"
+		conf.MetricsAddress = "127.0.0.1:9998"
 	}
 
 	if conf.PPROFAddress == "" {
-		conf.PPROFAddress = ":9999"
+		conf.PPROFAddress = "127.0.0.1:9999"
 	}
 
 	if len(conf.Protocols) == 0 {
diff --git a/rtsp-simple-server.yml b/rtsp-simple-server.yml
index 1783b57c..60c80ed0 100644
--- a/rtsp-simple-server.yml
+++ b/rtsp-simple-server.yml
@@ -26,12 +26,12 @@ apiAddress: 127.0.0.1:9997
 # enable Prometheus-compatible metrics.
 metrics: no
 # address of the metrics listener.
-metricsAddress: :9998
+metricsAddress: 127.0.0.1:9998
 
 # enable pprof-compatible endpoint to monitor performances.
 pprof: no
 # address of the pprof listener.
-pprofAddress: :9999
+pprofAddress: 127.0.0.1:9999
 
 # command to run when a client connects to the server.
 # this is terminated with SIGINT when a client disconnects from the server.