diff --git a/lib/stan_math b/lib/stan_math
index b542337b699..6c3e3c74b5e 160000
--- a/lib/stan_math
+++ b/lib/stan_math
@@ -1 +1 @@
-Subproject commit b542337b699f6a2377d588ea37d06a0a4927929b
+Subproject commit 6c3e3c74b5e07f27aa311395f17d1d2339d715a7