diff --git a/contrib/libcxx b/contrib/libcxx
index 3a4c2689ae8..f5374ce9484 160000
--- a/contrib/libcxx
+++ b/contrib/libcxx
@@ -1 +1 @@
-Subproject commit 3a4c2689ae846c16a3210744f8386f99d5e85d17
+Subproject commit f5374ce9484dc4accff6aa39f307f377cecad906