diff --git a/stan b/stan
index ece3172044..b6d2d9a513 160000
--- a/stan
+++ b/stan
@@ -1 +1 @@
-Subproject commit ece31720446dee3c28a874afb86269244d666cab
+Subproject commit b6d2d9a5132f7d99c491c6b78620b3f61ca84c4d