diff --git a/exists_test.go b/exists_test.go
index 8442377..5c5c21d 100644
--- a/exists_test.go
+++ b/exists_test.go
@@ -1,9 +1,7 @@
 package redis
 
 import (
-	// "strconv"
 	"testing"
-	// "tgo/helper"
 )
 
 func Test_Exists(t *testing.T) {
diff --git a/go.mod b/go.mod
index 018983f..af0034d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,6 @@ module git.tetele.net/tgo/redis
 go 1.16
 
 require (
-	git.tetele.net/tgo/conf v0.48.0
 	git.tetele.net/tgo/helper v0.3.1
 	github.com/gomodule/redigo v1.8.8
 )
diff --git a/go.sum b/go.sum
index 0f964c4..146c703 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,3 @@
-git.tetele.net/tgo/conf v0.48.0 h1:goHmxuzkSnoPFJbTVIF7IL13SAINQWWilEQVrRJR9Wg=
-git.tetele.net/tgo/conf v0.48.0/go.mod h1:AWVIBEDE5dtotthUgR0SWaR2Qa6/f+O5WQ3s7Tj8q7A=
 git.tetele.net/tgo/helper v0.3.1 h1:5+6xK6nr2BB1A0XVKrrA8R/GW0y3aUuKUIcz3zgAwZo=
 git.tetele.net/tgo/helper v0.3.1/go.mod h1:89mQwyfqZ+t8YXiVwzSxA70gLlUNqoZGDEUxvV46jXk=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=