diff --git a/math/rumur/Makefile b/math/rumur/Makefile
index c8e05ba3fdb7..6e3457bd2d7a 100644
--- a/math/rumur/Makefile
+++ b/math/rumur/Makefile
@@ -1,33 +1,33 @@
 PORTNAME=	rumur
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2023.05.21
+DISTVERSION=	2023.11.27
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Model checker, a formal verification tool for state machines
 WWW=		https://github.com/Smattr/rumur
 
 LICENSE=	PD
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libgmpxx.so:math/gmp
 
 USES=		bison cmake compiler:c++11-lang python:build shebangfix
 USE_LDCONFIG=	yes
 
 SHEBANG_FILES=	rumur/src/rumur-run
 SHEBANG_GLOB=	*.py
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	Smattr
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_ARGS=	BISON_EXECUTABLE:STRING=${LOCALBASE}/bin/bison
 
 BINARY_ALIAS=	python3=${PYTHON_CMD}
 
 do-test:
 	@cd ${BUILD_WRKSRC} && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} --build . --target check
 
 .include <bsd.port.mk>
diff --git a/math/rumur/distinfo b/math/rumur/distinfo
index 5cb5dd0c4408..9f9f322d0b53 100644
--- a/math/rumur/distinfo
+++ b/math/rumur/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1684988209
-SHA256 (Smattr-rumur-v2023.05.21_GH0.tar.gz) = db3161adf57e746b1bd49b2a204db64d4ef3dd0a8211f4e92db401b24a391cd2
-SIZE (Smattr-rumur-v2023.05.21_GH0.tar.gz) = 317098
+TIMESTAMP = 1703315832
+SHA256 (Smattr-rumur-v2023.11.27_GH0.tar.gz) = af7653196b5a651697ff232ca5bef6e7b175aaa95653e33a40cd91587fed5d4f
+SIZE (Smattr-rumur-v2023.11.27_GH0.tar.gz) = 318263