diff --git a/api/auth.go b/api/auth.go
index e2d22c46..da446dde 100644
--- a/api/auth.go
+++ b/api/auth.go
@@ -7,9 +7,9 @@ import (
 	"fmt"
 	"io/ioutil"
 	"memos/api/e"
-	"memos/common"
 	"memos/config"
 	"memos/store"
+	"memos/utils"
 	"net/http"
 
 	"github.com/gorilla/mux"
@@ -222,7 +222,7 @@ func handleGithubAuthCallback(w http.ResponseWriter, r *http.Request) {
 		username := githubUser.Name
 		usernameUsable, _ := store.CheckUsernameUsable(username)
 		for !usernameUsable {
-			username = githubUser.Name + common.GenUUID()
+			username = githubUser.Name + utils.GenUUID()
 			usernameUsable, _ = store.CheckUsernameUsable(username)
 		}
 		user, _ = store.CreateNewUser(username, username, githubUser.Login, "")
diff --git a/api/session.go b/api/session.go
index c4d80515..b6935633 100644
--- a/api/session.go
+++ b/api/session.go
@@ -1,9 +1,9 @@
 package api
 
 import (
-	"memos/common"
+	"memos/utils"
 
 	"github.com/gorilla/sessions"
 )
 
-var SessionStore = sessions.NewCookieStore([]byte(common.GenUUID()))
+var SessionStore = sessions.NewCookieStore([]byte(utils.GenUUID()))
diff --git a/store/memo.go b/store/memo.go
index 8bcb4e7b..64acc4f9 100644
--- a/store/memo.go
+++ b/store/memo.go
@@ -1,7 +1,7 @@
 package store
 
 import (
-	"memos/common"
+	"memos/utils"
 	"strings"
 )
 
@@ -15,9 +15,9 @@ type Memo struct {
 }
 
 func CreateNewMemo(content string, userId string) (Memo, error) {
-	nowDateTimeStr := common.GetNowDateTimeStr()
+	nowDateTimeStr := utils.GetNowDateTimeStr()
 	newMemo := Memo{
-		Id:        common.GenUUID(),
+		Id:        utils.GenUUID(),
 		Content:   content,
 		UserId:    userId,
 		DeletedAt: "",
@@ -48,7 +48,7 @@ func UpdateMemo(id string, memoPatch *MemoPatch) (Memo, error) {
 		memo.DeletedAt = *v
 		set, args = append(set, "deleted_at=?"), append(args, *v)
 	}
-	set, args = append(set, "updated_at=?"), append(args, common.GetNowDateTimeStr())
+	set, args = append(set, "updated_at=?"), append(args, utils.GetNowDateTimeStr())
 	args = append(args, id)
 
 	sqlQuery := `UPDATE memos SET ` + strings.Join(set, ",") + ` WHERE id=?`
diff --git a/store/query.go b/store/query.go
index 97e0163d..7a8aab1a 100644
--- a/store/query.go
+++ b/store/query.go
@@ -1,7 +1,7 @@
 package store
 
 import (
-	"memos/common"
+	"memos/utils"
 	"strings"
 )
 
@@ -16,9 +16,9 @@ type Query struct {
 }
 
 func CreateNewQuery(title string, querystring string, userId string) (Query, error) {
-	nowDateTimeStr := common.GetNowDateTimeStr()
+	nowDateTimeStr := utils.GetNowDateTimeStr()
 	newQuery := Query{
-		Id:          common.GenUUID(),
+		Id:          utils.GenUUID(),
 		Title:       title,
 		Querystring: querystring,
 		UserId:      userId,
@@ -55,7 +55,7 @@ func UpdateQuery(id string, queryPatch *QueryPatch) (Query, error) {
 		query.PinnedAt = *v
 		set, args = append(set, "pinned_at=?"), append(args, *v)
 	}
-	set, args = append(set, "updated_at=?"), append(args, common.GetNowDateTimeStr())
+	set, args = append(set, "updated_at=?"), append(args, utils.GetNowDateTimeStr())
 	args = append(args, id)
 
 	sqlQuery := `UPDATE queries SET ` + strings.Join(set, ",") + ` WHERE id=?`
diff --git a/store/user.go b/store/user.go
index bbdee291..cf5b6aba 100644
--- a/store/user.go
+++ b/store/user.go
@@ -3,7 +3,7 @@ package store
 import (
 	"database/sql"
 	"fmt"
-	"memos/common"
+	"memos/utils"
 	"strings"
 )
 
@@ -18,9 +18,9 @@ type User struct {
 }
 
 func CreateNewUser(username string, password string, githubName string, wxOpenId string) (User, error) {
-	nowDateTimeStr := common.GetNowDateTimeStr()
+	nowDateTimeStr := utils.GetNowDateTimeStr()
 	newUser := User{
-		Id:         common.GenUUID(),
+		Id:         utils.GenUUID(),
 		Username:   username,
 		Password:   password,
 		WxOpenId:   wxOpenId,
@@ -62,7 +62,7 @@ func UpdateUser(id string, userPatch *UserPatch) (User, error) {
 		user.WxOpenId = *v
 		set, args = append(set, "wx_open_id=?"), append(args, *v)
 	}
-	set, args = append(set, "updated_at=?"), append(args, common.GetNowDateTimeStr())
+	set, args = append(set, "updated_at=?"), append(args, utils.GetNowDateTimeStr())
 	args = append(args, id)
 
 	sqlQuery := `UPDATE users SET ` + strings.Join(set, ",") + ` WHERE id=?`
diff --git a/common/utils.go b/utils/common.go
similarity index 92%
rename from common/utils.go
rename to utils/common.go
index db76158a..b2d5ec8d 100644
--- a/common/utils.go
+++ b/utils/common.go
@@ -1,4 +1,4 @@
-package common
+package utils
 
 import (
 	"time"