diff --git a/validator/flags/flags.go b/validator/flags/flags.go
index 00b660d46..8b217e385 100644
--- a/validator/flags/flags.go
+++ b/validator/flags/flags.go
@@ -18,7 +18,7 @@ var (
 	BeaconRPCProviderFlag = &cli.StringFlag{
 		Name:  "beacon-rpc-provider",
 		Usage: "Beacon node RPC provider endpoint",
-		Value: "localhost:4000",
+		Value: "127.0.0.1:4000",
 	}
 	// CertFlag defines a flag for the node's TLS certificate.
 	CertFlag = &cli.StringFlag{
@@ -29,7 +29,7 @@ var (
 	SlasherRPCProviderFlag = &cli.StringFlag{
 		Name:  "slasher-rpc-provider",
 		Usage: "Slasher node RPC provider endpoint",
-		Value: "localhost:4002",
+		Value: "127.0.0.1:4002",
 	}
 	// SlasherCertFlag defines a flag for the slasher node's TLS certificate.
 	SlasherCertFlag = &cli.StringFlag{