diff --git a/math/rumur/Makefile b/math/rumur/Makefile
index 713425e9d1b9..161578732185 100644
--- a/math/rumur/Makefile
+++ b/math/rumur/Makefile
@@ -1,32 +1,32 @@
 # $FreeBSD$
 
 PORTNAME=	rumur
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2020.09.06
+DISTVERSION=	2020.12.20
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Model checker, a formal verification tool for state machines
 
 LICENSE=	PD
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libgmpxx.so:math/gmp
 
 USES=		bison cmake compiler:c++11-lang python:build shebangfix
 SHEBANG_FILES=	rumur/src/rumur-run
 SHEBANG_GLOB=	*.py
 USE_GITHUB=	yes
 GH_ACCOUNT=	Smattr
 USE_LDCONFIG=	yes
 
 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 b248ded85e7e..7b8f2735010a 100644
--- a/math/rumur/distinfo
+++ b/math/rumur/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1600062559
-SHA256 (Smattr-rumur-v2020.09.06_GH0.tar.gz) = 99ea8ad72a48210e5af9e1083cdb6d0da69da0ecb13385e18c204e0ed65e5502
-SIZE (Smattr-rumur-v2020.09.06_GH0.tar.gz) = 292330
+TIMESTAMP = 1608844484
+SHA256 (Smattr-rumur-v2020.12.20_GH0.tar.gz) = 0d9a4c202b2b6f4cbd8179e7a9993e13ee81eda0cb04b7ab0f46248980d26c77
+SIZE (Smattr-rumur-v2020.12.20_GH0.tar.gz) = 299922
diff --git a/math/rumur/pkg-plist b/math/rumur/pkg-plist
index b8bf5d151d45..c51bcb8e105d 100644
--- a/math/rumur/pkg-plist
+++ b/math/rumur/pkg-plist
@@ -1,37 +1,38 @@
 bin/murphi2c
 bin/murphi2murphi
 bin/murphi2xml
 bin/rumur
 bin/rumur-run
 include/rumur/Boolean.h
+include/rumur/Comment.h
 include/rumur/Decl.h
 include/rumur/Expr.h
 include/rumur/Function.h
 include/rumur/Model.h
 include/rumur/Node.h
 include/rumur/Number.h
 include/rumur/Property.h
 include/rumur/Ptr.h
 include/rumur/Rule.h
 include/rumur/Stmt.h
 include/rumur/Symtab.h
 include/rumur/TypeExpr.h
 include/rumur/except.h
 include/rumur/indexer.h
 include/rumur/location.hh
 include/rumur/parse.h
 include/rumur/parser.yy.hh
 include/rumur/position.hh
 include/rumur/resolve-symbols.h
 include/rumur/rumur.h
 include/rumur/rumur-get-version.h
 include/rumur/scanner.h
 include/rumur/stack.hh
 include/rumur/traverse.h
 include/rumur/validate.h
 lib/librumur.so
 man/man1/murphi2c.1.gz
 man/man1/murphi2murphi.1.gz
 man/man1/murphi2xml.1.gz
 man/man1/rumur-run.1.gz
 man/man1/rumur.1.gz