diff --git a/go.mod b/go.mod
index c16a2e7..974d469 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/tklauser/numcpus
 
 go 1.24.0
 
-require golang.org/x/sys v0.37.0
+require golang.org/x/sys v0.38.0
diff --git a/go.sum b/go.sum
index ff185ac..3bbbd1f 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
-golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
+golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=