diff --git a/go.mod b/go.mod
index 409fe70..46dcfdd 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/ncruces/julianday v0.1.5
 	github.com/tetratelabs/wazero v1.0.0-rc.1
 	golang.org/x/sync v0.1.0
-	golang.org/x/sys v0.5.0
+	golang.org/x/sys v0.6.0
 )
 
 retract v0.4.0 // tagged from the wrong branch
diff --git a/go.sum b/go.sum
index 20bb936..bf57115 100644
--- a/go.sum
+++ b/go.sum
@@ -4,5 +4,5 @@ github.com/tetratelabs/wazero v1.0.0-rc.1 h1:ytecMV5Ue0BwezjKh/cM5yv1Mo49ep2R2sn
 github.com/tetratelabs/wazero v1.0.0-rc.1/go.mod h1:wYx2gNRg8/WihJfSDxA1TIL8H+GkfLYm+bIfbblu9VQ=
 golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
-golang.org/x/sys v0.5.0/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=