diff --git a/go.mod b/go.mod
index 896d92f..cbd946b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,14 +1,16 @@
 module go.unistack.org/micro-config-service/v4
 
-go 1.20
+go 1.21
+
+toolchain go1.23.4
 
 require (
-	dario.cat/mergo v1.0.0
+	dario.cat/mergo v1.0.1
 	go.unistack.org/micro/v4 v4.0.17
-	google.golang.org/protobuf v1.33.0
+	google.golang.org/protobuf v1.35.2
 )
 
 require (
-	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 )
diff --git a/go.sum b/go.sum
index c6b4fc5..a8f9de1 100644
--- a/go.sum
+++ b/go.sum
@@ -1,13 +1,10 @@
-dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
-dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 go.unistack.org/micro/v4 v4.0.17 h1:mF7uM+J4ILdG+1fcwzKYCwDlxhdbF/e1WnGzKKLnIXc=
 go.unistack.org/micro/v4 v4.0.17/go.mod h1:ZDgU9931vm2l7X6RN/6UuwRIVp24GRdmQ7dKmegArk4=
-google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/service.go b/service.go
index 99448f8..bdfee21 100644
--- a/service.go
+++ b/service.go
@@ -28,12 +28,15 @@ func (c *serviceConfig) Options() config.Options {
 }
 
 func (c *serviceConfig) Init(opts ...options.Option) error {
-	if err := config.DefaultBeforeInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+	var err error
+	if err = config.DefaultBeforeInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
 		return err
 	}
 
 	for _, o := range opts {
-		o(&c.opts)
+		if err = o(&c.opts); err != nil {
+			return err
+		}
 	}
 
 	var cli client.Client
@@ -47,12 +50,12 @@ func (c *serviceConfig) Init(opts ...options.Option) error {
 	}
 
 	if cli == nil {
-		err := fmt.Errorf("missing client option")
+		err = fmt.Errorf("missing client option")
 		if !c.opts.AllowFail {
 			return err
 		}
 
-		if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+		if err = config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
 			return err
 		}
 
@@ -60,12 +63,12 @@ func (c *serviceConfig) Init(opts ...options.Option) error {
 	}
 
 	if c.service == "" {
-		err := fmt.Errorf("missing Service option")
+		err = fmt.Errorf("missing Service option")
 		if !c.opts.AllowFail {
 			return err
 		}
 
-		if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+		if err = config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
 			return err
 		}
 
@@ -74,7 +77,7 @@ func (c *serviceConfig) Init(opts ...options.Option) error {
 
 	c.client = pbmicro.NewConfigServiceClient(c.service, cli)
 
-	if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+	if err = config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
 		return err
 	}