diff --git a/merkledag_test.go b/merkledag_test.go
index 61fb814..d02ae74 100644
--- a/merkledag_test.go
+++ b/merkledag_test.go
@@ -3,13 +3,13 @@ package merkledag_test
 import (
 	"bytes"
 	"context"
+	"crypto/rand"
 	"encoding/hex"
 	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
 	"math"
-	"math/rand"
 	"strings"
 	"sync"
 	"testing"