diff --git a/go.mod b/go.mod
index f7cb0d5..a7cba46 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/safchain/ethtool
 
 go 1.24.0
 
-require golang.org/x/sys v0.38.0
+require golang.org/x/sys v0.40.0
diff --git a/go.sum b/go.sum
index 3bbbd1f..d117642 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
-golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=