diff --git a/mt-challenger/challenger/challenger_test.go b/mt-challenger/challenger/challenger_test.go
index a716c972d..5412da474 100644
--- a/mt-challenger/challenger/challenger_test.go
+++ b/mt-challenger/challenger/challenger_test.go
@@ -2,8 +2,9 @@ package challenger
 
 import (
 	"fmt"
-	"github.com/stretchr/testify/require"
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 func TestSliceRange(t *testing.T) {