diff --git a/app/api/example_api/Dockerfile b/app/api/example_api/Dockerfile
index 831b439..0f4f074 100644
--- a/app/api/example_api/Dockerfile
+++ b/app/api/example_api/Dockerfile
@@ -9,7 +9,6 @@ WORKDIR /go/src
 ADD . .
 RUN go mod tidy
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o api_example_api ./app/api/example_api
-
 FROM alpine as example_api
 WORKDIR /go/src
 COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
diff --git a/app/service/example_service/example_service.go b/app/service/example_service/example_service.go
index d8553e4..91fc69a 100644
--- a/app/service/example_service/example_service.go
+++ b/app/service/example_service/example_service.go
@@ -1,6 +1,8 @@
 package main
 
-import "git.icechen.cn/pkg/go-template/app/service/example_service/pkg/user"
+import (
+	"git.icechen.cn/pkg/go-template/app/service/example_service/internal/user"
+)
 
 func main() {
 	user.RpcServer()
diff --git a/app/service/example_service/pkg/user/user.go b/app/service/example_service/internal/user/user.go
similarity index 100%
rename from app/service/example_service/pkg/user/user.go
rename to app/service/example_service/internal/user/user.go
diff --git a/app/service/example_service/internal/user2/user.go b/app/service/example_service/internal/user2/user.go
deleted file mode 100644
index 4c78e66..0000000
--- a/app/service/example_service/internal/user2/user.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package user2
-
-import "fmt"
-
-func CreateUser() {
-	fmt.Println("create user")
-}
diff --git a/pkg/rpc/rpc.go b/pkg/rpc/rpc.go
index 426229a..0cc056b 100644
--- a/pkg/rpc/rpc.go
+++ b/pkg/rpc/rpc.go
@@ -3,11 +3,12 @@ package rpc
 import (
 	"google.golang.org/grpc"
 	"os"
+	"strings"
 )
 
 // GetServiceConn 获取服务的连接
 func GetServiceConn(serviceName string) *grpc.ClientConn {
-	target := os.Getenv("SERVICE_" + serviceName)
+	target := strings.ToUpper(os.Getenv("SERVICE_" + serviceName))
 	cli, _ := grpc.Dial(target, grpc.WithInsecure())
 	return cli
 }