diff --git a/libR-sys b/libR-sys
index ba9944aa8e..4728e8520c 160000
--- a/libR-sys
+++ b/libR-sys
@@ -1 +1 @@
-Subproject commit ba9944aa8ee605b7dd71033bdb4837130faf1390
+Subproject commit 4728e8520cf2b733bb3502862e4f26bd46930c2c