diff --git a/.goreleaser.pre.yaml b/.goreleaser.pre.yaml
index 682c7ec..661278e 100644
--- a/.goreleaser.pre.yaml
+++ b/.goreleaser.pre.yaml
@@ -12,7 +12,7 @@ builds:
       - arm
       - "386"
     ldflags:
-      - -s -w -X sub2sing-box/main.Version={{ .Version }}
+      - -s -w -X sub2sing-box/constant.Version={{ .Version }}
     flags:
       - -trimpath
     no_unique_dist_dir: true
diff --git a/.goreleaser.yaml b/.goreleaser.yaml
index 2aea47c..9a6e416 100644
--- a/.goreleaser.yaml
+++ b/.goreleaser.yaml
@@ -12,7 +12,7 @@ builds:
       - arm
       - "386"
     ldflags:
-      - -s -w -X sub2sing-box/main.Version={{ .Version }}
+      - -s -w -X sub2sing-box/constant.Version={{ .Version }}
     flags:
       - -trimpath
     no_unique_dist_dir: true
diff --git a/Dockerfile b/Dockerfile
index 628043e..b03858d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN go mod download
 
 ARG version
 
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X sub2clash/config.Version=${version}" -o sub2sing-box main.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X sub2sing-box/constant.Version=${version}" -o sub2sing-box main.go
 
 WORKDIR /app
 
diff --git a/cmd/root.go b/cmd/root.go
index 6d8c1e7..ebef5cc 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -5,7 +5,3 @@ import (
 )
 
 var RootCmd = &cobra.Command{}
-
-func SetVersion(version string) {
-	RootCmd.Version = version
-}
diff --git a/cmd/version.go b/cmd/version.go
index 2bb8dc2..608c9ce 100644
--- a/cmd/version.go
+++ b/cmd/version.go
@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"sub2sing-box/constant"
 
 	"github.com/spf13/cobra"
 )
@@ -11,7 +12,7 @@ var versionCmd = &cobra.Command{
 	Short: "Print version",
 	Long:  "Print version",
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("version: " + RootCmd.Version)
+		fmt.Println("version: " + constant.Version)
 	},
 }
 
diff --git a/constant/version.go b/constant/version.go
new file mode 100644
index 0000000..c8b5168
--- /dev/null
+++ b/constant/version.go
@@ -0,0 +1,3 @@
+package constant
+
+var Version = "dev"
diff --git a/main.go b/main.go
index 98cf883..408dbce 100644
--- a/main.go
+++ b/main.go
@@ -5,13 +5,6 @@ import (
 	"sub2sing-box/cmd"
 )
 
-var Version string
-
-func init() {
-	Version = "dev"
-	cmd.SetVersion(Version)
-}
-
 func main() {
 	if err := cmd.RootCmd.Execute(); err != nil {
 		fmt.Println(err)