diff --git a/go.mod b/go.mod
index 63fd8aa..f387c4f 100644
--- a/go.mod
+++ b/go.mod
@@ -6,5 +6,5 @@ require (
 	github.com/drand/kyber v1.1.4
 	github.com/phoreproject/bls v0.0.0-20200525203911-a88a5ae26844
 	golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de
-	golang.org/x/sys v0.0.0-20200812155832-6a926be9bd1d
+	golang.org/x/sys v0.1.0
 )