diff --git a/go.mod b/go.mod
index a64fe2ce70..c601c8cbdc 100644
--- a/go.mod
+++ b/go.mod
@@ -57,6 +57,7 @@ require (
 	go.uber.org/zap v1.19.0 // indirect
 	golang.org/x/crypto v0.0.0-20210813211128-0a44fdfbc16e // indirect
 	golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
 	golang.org/x/sys v0.0.0-20210816183151-1e6c022a8912 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/grpc v1.40.0 // indirect