diff --git a/lib/stan_math b/lib/stan_math
index 7ada875b1a..4a812be023 160000
--- a/lib/stan_math
+++ b/lib/stan_math
@@ -1 +1 @@
-Subproject commit 7ada875b1a3a20fd78ce4eabd29664dc0d1fc42e
+Subproject commit 4a812be023c2b98c4ef97999985fd947cfc895fa