diff --git a/util/deadlock/deadlock.go b/store/tikv/mockstore/deadlock/deadlock.go
similarity index 100%
rename from util/deadlock/deadlock.go
rename to store/tikv/mockstore/deadlock/deadlock.go
diff --git a/util/deadlock/deadlock_test.go b/store/tikv/mockstore/deadlock/deadlock_test.go
similarity index 100%
rename from util/deadlock/deadlock_test.go
rename to store/tikv/mockstore/deadlock/deadlock_test.go
diff --git a/store/tikv/mockstore/mocktikv/mvcc_leveldb.go b/store/tikv/mockstore/mocktikv/mvcc_leveldb.go
index 5b101d1081..a07058ad42 100644
--- a/store/tikv/mockstore/mocktikv/mvcc_leveldb.go
+++ b/store/tikv/mockstore/mocktikv/mvcc_leveldb.go
@@ -28,9 +28,9 @@ import (
 	"github.com/pingcap/kvproto/pkg/kvrpcpb"
 	"github.com/pingcap/parser/terror"
 	"github.com/pingcap/tidb/kv"
+	"github.com/pingcap/tidb/store/tikv/mockstore/deadlock"
 	"github.com/pingcap/tidb/store/tikv/oracle"
 	"github.com/pingcap/tidb/util/codec"
-	"github.com/pingcap/tidb/util/deadlock"
 	"github.com/pingcap/tidb/util/logutil"
 	"go.uber.org/zap"
 )