diff --git a/go.mod b/go.mod
index 4a240d9..d3d875c 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/vishvananda/netns
 
 go 1.17
 
-require golang.org/x/sys v0.2.0
+require golang.org/x/sys v0.4.0
diff --git a/go.sum b/go.sum
index beac707..c2a6782 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
-golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
+golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=