diff --git a/biology/libcombine/Makefile b/biology/libcombine/Makefile
index 888059b5caad..81ed203b5b35 100644
--- a/biology/libcombine/Makefile
+++ b/biology/libcombine/Makefile
@@ -1,30 +1,30 @@
 PORTNAME=	libcombine
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.2.19
+DISTVERSION=	0.2.20
 CATEGORIES=	biology
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ library for working with the COMBINE archive format
 WWW=		https://sbml.org/software/libsbml/
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 LIB_DEPENDS=	libsbml.so:biology/libsbml
 
-USES=		cmake:testing gnome localbase:ldflags
+USES=		cmake:testing compiler:c++11-lang gnome localbase:ldflags
 USE_GNOME=	libxml2
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	sbmlteam
 GH_PROJECT=	libCombine
-GH_TUPLE=	fbergmann:zipper:6f54c03:zipper/src/zipper \
-		sebastiandev:minizip:e3a8cb7:zipper_minizip/src/zipper/minizip
+GH_TUPLE=	fbergmann:zipper:c56a27f:zipper/submodules/zipper \
+		sebastiandev:minizip:e3a8cb7:zipper_minizip/submodules/zipper/minizip
 
 CMAKE_OFF=	BUILD_TEST
 CMAKE_TESTING_ON=	BUILD_TEST # tests fail to build, see https://github.com/sbmlteam/libCombine/issues/58
 
 LDFLAGS+=	-lsbml # FindSBML.cmake fails to set this link flag
 
 .include <bsd.port.mk>
diff --git a/biology/libcombine/distinfo b/biology/libcombine/distinfo
index 935e8183950b..8b2474e0d7af 100644
--- a/biology/libcombine/distinfo
+++ b/biology/libcombine/distinfo
@@ -1,7 +1,7 @@
-TIMESTAMP = 1666331339
-SHA256 (sbmlteam-libCombine-v0.2.19_GH0.tar.gz) = a9ac562cca70cd8862b3f3cd65c98e8e455896732a8e1d3ee1ff32bf8ec02ac5
-SIZE (sbmlteam-libCombine-v0.2.19_GH0.tar.gz) = 1524012
-SHA256 (fbergmann-zipper-6f54c03_GH0.tar.gz) = 61aba13ecc2cb23617cf6496bc67739820a7b8c203b3dbb0ce9fddd0a68598d6
-SIZE (fbergmann-zipper-6f54c03_GH0.tar.gz) = 124726
+TIMESTAMP = 1670484063
+SHA256 (sbmlteam-libCombine-v0.2.20_GH0.tar.gz) = 2b4f76d479490b6b503217bb8135cf05a924c22fc8307e6829b82a586f67d3c1
+SIZE (sbmlteam-libCombine-v0.2.20_GH0.tar.gz) = 1525273
+SHA256 (fbergmann-zipper-c56a27f_GH0.tar.gz) = 32375fc560c2419603de4b1f4dfc30e99434e8fdc285537219571f77899e037a
+SIZE (fbergmann-zipper-c56a27f_GH0.tar.gz) = 124812
 SHA256 (sebastiandev-minizip-e3a8cb7_GH0.tar.gz) = 14492faf0694bf075312626ffba0fe6fcfccb450001db5b01fece2134d69a75d
 SIZE (sebastiandev-minizip-e3a8cb7_GH0.tar.gz) = 85593
diff --git a/biology/libcombine/pkg-plist b/biology/libcombine/pkg-plist
index d453477f9f49..85a990f0ada3 100644
--- a/biology/libcombine/pkg-plist
+++ b/biology/libcombine/pkg-plist
@@ -1,43 +1,43 @@
 include/combine/combinearchive.h
 include/combine/knownformats.h
 include/combine/omexdescription.h
 include/combine/util.h
 include/combine/vcard.h
 include/omex/CaBase.h
 include/omex/CaConstructorException.h
 include/omex/CaContent.h
 include/omex/CaCrossRef.h
 include/omex/CaError.h
 include/omex/CaErrorLog.h
 include/omex/CaErrorTable.h
 include/omex/CaListOf.h
 include/omex/CaListOfContents.h
 include/omex/CaListOfCrossRefs.h
 include/omex/CaNamespaces.h
 include/omex/CaOmexManifest.h
 include/omex/CaReader.h
 include/omex/CaTypeCodes.h
 include/omex/CaTypes.h
 include/omex/CaVisitor.h
 include/omex/CaWriter.h
 include/omex/common/CaOperationReturnValues.h
 include/omex/common/combinefwd.h
 include/omex/common/common.h
 include/omex/common/extern.h
 include/omex/common/libcombine-config-common.h
 include/omex/common/libcombine-config.h
 include/omex/common/libcombine-namespace.h
 include/omex/common/libcombine-version.h
 lib/cmake/Combine-config-version.cmake
 lib/cmake/Combine-config.cmake
 lib/cmake/Combine-static-config-version.cmake
 lib/cmake/Combine-static-config.cmake
 lib/cmake/Combine-static-targets-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/Combine-static-targets.cmake
 lib/cmake/Combine-targets-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/Combine-targets.cmake
 lib/libCombine-static.a
 lib/libCombine.so
 lib/libCombine.so.0
-lib/libCombine.so.0.2.19
+lib/libCombine.so.0.2.20
 share/cmake/Modules/FindLIBCOMBINE.cmake