diff --git a/go.mod b/go.mod
index b7ebe37c..2e3333ac 100644
--- a/go.mod
+++ b/go.mod
@@ -16,6 +16,7 @@ require (
 	github.com/stretchr/testify v1.7.0
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
+	golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed
 )
 
 require (