diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index fea5de3..5de895f 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -13,7 +13,7 @@ jobs:
           stable: 'false'
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cache go module
         uses: actions/cache@v2
diff --git a/cmd/root.go b/cmd/root.go
index e1bca2d..d959e14 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -1,12 +1,19 @@
 package cmd
 
 import (
+	"bufio"
+	"fmt"
 	"log"
 	"os"
+	"strings"
 
+	"github.com/zu1k/nali/pkg/entity"
+
+	"github.com/fatih/color"
 	"github.com/spf13/cobra"
-	"github.com/zu1k/nali/internal/app"
 	"github.com/zu1k/nali/internal/constant"
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"golang.org/x/text/transform"
 )
 
 var rootCmd = &cobra.Command{
@@ -55,7 +62,22 @@ Find document on: https://github.com/zu1k/nali
 	Args:    cobra.MinimumNArgs(0),
 	Run: func(cmd *cobra.Command, args []string) {
 		gbk, _ := cmd.Flags().GetBool("gbk")
-		app.Root(args, gbk)
+
+		if len(args) == 0 {
+			stdin := bufio.NewScanner(os.Stdin)
+			for stdin.Scan() {
+				line := stdin.Text()
+				if gbk {
+					line, _, _ = transform.String(simplifiedchinese.GBK.NewDecoder(), line)
+				}
+				if line == "quit" || line == "exit" {
+					return
+				}
+				_, _ = fmt.Fprintf(color.Output, "%s\n", entity.ParseLine(line).ColorString())
+			}
+		} else {
+			_, _ = fmt.Fprintf(color.Output, "%s\n", entity.ParseLine(strings.Join(args, " ")).ColorString())
+		}
 	},
 }
 
diff --git a/cmd/update.go b/cmd/update.go
index beab8da..ee27e07 100644
--- a/cmd/update.go
+++ b/cmd/update.go
@@ -1,14 +1,9 @@
 package cmd
 
 import (
-	"log"
-	"path/filepath"
+	"github.com/zu1k/nali/internal/db"
 
 	"github.com/spf13/cobra"
-	"github.com/zu1k/nali/internal/constant"
-	"github.com/zu1k/nali/pkg/cdn"
-	"github.com/zu1k/nali/pkg/qqwry"
-	"github.com/zu1k/nali/pkg/zxipv6wry"
 )
 
 // updateCmd represents the update command
@@ -17,32 +12,8 @@ var updateCmd = &cobra.Command{
 	Short: "update chunzhen ip database",
 	Long:  `update chunzhen ip database`,
 	Run: func(cmd *cobra.Command, args []string) {
-		// Chunzhen ipv4
-		filePath := filepath.Join(constant.HomePath, "qqwry.dat")
-		log.Println("正在下载最新 纯真 IPv4数据库...")
-		_, err := qqwry.Download(filePath)
-		if err != nil {
-			log.Fatalln("下载失败", err.Error())
-			return
-		}
+		db.UpdateAllDB()
 
-		// ZX ipv6
-		filePath = filepath.Join(constant.HomePath, "ipv6wry.database")
-		log.Println("正在下载最新 ZX IPv6数据库...")
-		_, err = zxipv6wry.Download(filePath)
-		if err != nil {
-			log.Fatalln("下载失败", err.Error())
-			return
-		}
-
-		// cdn
-		filePath = filepath.Join(constant.HomePath, "cdn.json")
-		log.Println("正在下载最新 CDN服务提供商数据库...")
-		_, err = cdn.Download(filePath)
-		if err != nil {
-			log.Fatalln("下载失败", err.Error())
-			return
-		}
 	},
 }
 
diff --git a/internal/app/command.go b/internal/app/command.go
deleted file mode 100644
index 6aa4b09..0000000
--- a/internal/app/command.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package app
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"strings"
-
-	"github.com/fatih/color"
-	"github.com/zu1k/nali/internal/entity"
-	"golang.org/x/text/encoding/simplifiedchinese"
-	"golang.org/x/text/transform"
-)
-
-func Root(args []string, needTransform bool) {
-	if len(args) == 0 {
-		stdin := bufio.NewScanner(os.Stdin)
-		for stdin.Scan() {
-			line := stdin.Text()
-			if needTransform {
-				line, _, _ = transform.String(simplifiedchinese.GBK.NewDecoder(), line)
-			}
-			if line == "quit" || line == "exit" {
-				return
-			}
-			fmt.Fprintf(color.Output, "%s\n", entity.ParseLine(line).ColorString())
-		}
-	} else {
-		fmt.Fprintf(color.Output, "%s\n", entity.ParseLine(strings.Join(args, " ")).ColorString())
-	}
-}
diff --git a/internal/db/db.go b/internal/db/db.go
index 2ac381d..97dcccf 100644
--- a/internal/db/db.go
+++ b/internal/db/db.go
@@ -104,18 +104,27 @@ func GetIPDBbyName(name string) (dbif.DB, error) {
 	}
 }
 
-func Update() {
+func UpdateAllDB() {
+	log.Println("正在下载最新 纯真 IPv4数据库...")
 	_, err := qqwry.Download(QQWryPath)
 	if err != nil {
-		log.Fatalln("Database QQWry download failed:", err)
+		log.Fatalln("数据库 QQWry 下载失败:", err)
 	}
+
+	log.Println("正在下载最新 ZX IPv6数据库...")
 	_, err = zxipv6wry.Download(ZXIPv6WryPath)
 	if err != nil {
-		log.Fatalln("Database ZXIPv6Wry download failed:", err)
+		log.Fatalln("数据库 ZXIPv6Wry 下载失败:", err)
 	}
+	_, err = ip2region.Download(Ip2RegionPath)
+	if err != nil {
+		log.Fatalln("数据库 Ip2Region 下载失败:", err)
+	}
+
+	log.Println("正在下载最新 CDN服务提供商数据库...")
 	_, err = cdn.Download(CDNPath)
 	if err != nil {
-		log.Fatalln("Database CDN download failed:", err)
+		log.Fatalln("数据库 CDN 下载失败:", err)
 	}
 }
 
diff --git a/internal/entity/entity.go b/pkg/entity/entity.go
similarity index 100%
rename from internal/entity/entity.go
rename to pkg/entity/entity.go
diff --git a/internal/entity/parse.go b/pkg/entity/parse.go
similarity index 97%
rename from internal/entity/parse.go
rename to pkg/entity/parse.go
index 9738339..0238004 100644
--- a/internal/entity/parse.go
+++ b/pkg/entity/parse.go
@@ -4,8 +4,9 @@ import (
 	"net/netip"
 	"sort"
 
+	"github.com/zu1k/nali/pkg/re"
+
 	"github.com/zu1k/nali/internal/db"
-	"github.com/zu1k/nali/internal/re"
 	"github.com/zu1k/nali/pkg/dbif"
 )
 
diff --git a/internal/entity/parse_test.go b/pkg/entity/parse_test.go
similarity index 100%
rename from internal/entity/parse_test.go
rename to pkg/entity/parse_test.go
diff --git a/pkg/ip2region/update.go b/pkg/ip2region/update.go
index af7fe38..b5a5750 100644
--- a/pkg/ip2region/update.go
+++ b/pkg/ip2region/update.go
@@ -21,7 +21,7 @@ func Download(filePath ...string) (data []byte, err error) {
 
 	if len(filePath) == 1 {
 		if err := common.SaveFile(filePath[0], data); err == nil {
-			log.Println("已将最新的 ip2region 保存到本地:", filePath[0])
+			log.Println("已将最新的 ip2region 保存到本地:", filePath)
 		}
 	}
 	return
diff --git a/internal/re/re.go b/pkg/re/re.go
similarity index 100%
rename from internal/re/re.go
rename to pkg/re/re.go
diff --git a/internal/re/re_test.go b/pkg/re/re_test.go
similarity index 100%
rename from internal/re/re_test.go
rename to pkg/re/re_test.go
diff --git a/pkg/zxipv6wry/update.go b/pkg/zxipv6wry/update.go
index 44c75cf..64dc748 100644
--- a/pkg/zxipv6wry/update.go
+++ b/pkg/zxipv6wry/update.go
@@ -20,7 +20,7 @@ func Download(filePath ...string) (data []byte, err error) {
 
 	if len(filePath) == 1 {
 		if err := common.SaveFile(filePath[0], data); err == nil {
-			log.Println("已将最新的 ZX IPv6数据库 保存到本地:", filePath[0])
+			log.Println("已将最新的 ZX IPv6数据库 保存到本地:", filePath)
 		}
 	}
 	return