diff --git a/libR-sys b/libR-sys
index ef1910f0b5..19c73c0417 160000
--- a/libR-sys
+++ b/libR-sys
@@ -1 +1 @@
-Subproject commit ef1910f0b52bf14ef9887eb1b208cdd05afe2555
+Subproject commit 19c73c04175743a58900ffb9c2a43398e82d506e