diff --git a/go.mod b/go.mod
index 1669511..18aacf4 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/mackerelio/go-osstat
 
 go 1.18
 
-require golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8
+require golang.org/x/sys v0.6.0
diff --git a/go.sum b/go.sum
index 9a74a7a..789d7a1 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8 h1:OH54vjqzRWmbJ62fjuhxy7AxFFgoHN0/DPc/UrL8cAs=
-golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=