diff --git a/math/stan/Makefile b/math/stan/Makefile
index 59043eed575d..3fe02f0afd79 100644
--- a/math/stan/Makefile
+++ b/math/stan/Makefile
@@ -1,6 +1,6 @@
 PORTNAME=	stan
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.28.2
+DISTVERSION=	2.29.1
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
diff --git a/math/stan/distinfo b/math/stan/distinfo
index 0e43e1ac8f85..b98a163e745f 100644
--- a/math/stan/distinfo
+++ b/math/stan/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1638139255
-SHA256 (stan-dev-stan-v2.28.2_GH0.tar.gz) = 3a79a8cd0158105fa8f680f61e3a80d55627c4daa73305536d7ef999094f0cd1
-SIZE (stan-dev-stan-v2.28.2_GH0.tar.gz) = 4873001
+TIMESTAMP = 1646585229
+SHA256 (stan-dev-stan-v2.29.1_GH0.tar.gz) = 1f6151aea60a9177305adae07f119bbec42a3c38cda4ce136c4da07cc0b571df
+SIZE (stan-dev-stan-v2.29.1_GH0.tar.gz) = 3930440