diff --git a/internal/rosa/x.go b/internal/rosa/x.go
index e252270..8d9a7c6 100644
--- a/internal/rosa/x.go
+++ b/internal/rosa/x.go
@@ -63,14 +63,14 @@ func init() {
 
 func (t Toolchain) newLibXau() (pkg.Artifact, string) {
 	const (
-		version  = "1.0.7"
-		checksum = "bm768RoZZnHRe9VjNU1Dw3BhfE60DyS9D_bgSR-JLkEEyUWT_Hb_lQripxrXto8j"
+		version  = "1.0.12"
+		checksum = "G9AjnU_C160q814MCdjFOVt_mQz_pIt4wf4GNOQmGJS3UuuyMw53sfPvJ7WOqwXN"
 	)
 	return t.NewPackage("libXau", version, pkg.NewHTTPGetTar(
-		nil, "https://www.x.org/releases/X11R7.7/src/lib/"+
-			"libXau-"+version+".tar.bz2",
+		nil, "https://www.x.org/releases/individual/lib/"+
+			"libXau-"+version+".tar.gz",
 		mustDecode(checksum),
-		pkg.TarBzip2,
+		pkg.TarGzip,
 	), nil, &MakeHelper{
 		// ancient configure script
 		Generate: "autoreconf -if",