diff --git a/test/integration/tree_test.go b/test/integration/tree_test.go
index ec63e264f..54e1067c0 100644
--- a/test/integration/tree_test.go
+++ b/test/integration/tree_test.go
@@ -20,13 +20,13 @@ package integration
 
 import (
 	"context"
-	"github.com/yorkie-team/yorkie/api/converter"
-	"github.com/yorkie-team/yorkie/pkg/document/crdt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 
+	"github.com/yorkie-team/yorkie/api/converter"
 	"github.com/yorkie-team/yorkie/pkg/document"
+	"github.com/yorkie-team/yorkie/pkg/document/crdt"
 	"github.com/yorkie-team/yorkie/pkg/document/json"
 	"github.com/yorkie-team/yorkie/pkg/document/presence"
 	"github.com/yorkie-team/yorkie/pkg/index"