diff --git a/graphics/heimer/Makefile b/graphics/heimer/Makefile
index 4c9735383b63..133d18d7fee3 100644
--- a/graphics/heimer/Makefile
+++ b/graphics/heimer/Makefile
@@ -1,45 +1,45 @@
 PORTNAME=	heimer
-DISTVERSION=	3.5.0
+DISTVERSION=	3.6.0
 CATEGORIES=	graphics
 MASTER_SITES=	https://github.com/juzzlin/Heimer/releases/download/${DISTVERSION}/
 
 MAINTAINER=	eduardo@FreeBSD.org
 COMMENT=	Simple mind map, diagram, and note-taking tool
 
 LICENSE=	CC-BY-SA-3.0 GPLv3+
 LICENSE_COMB=	multi
 LICENSE_FILE_GPLv3+ =	${WRKSRC}/COPYING
 
-USES=		cmake compiler:c++14-lang qt:5
+USES=		cmake compiler:c++17-lang qt:5
 USE_QT=		core gui network svg widgets xml buildtools_build \
 		linguisttools_build qmake_build testlib_build
 TEST_TARGET=	test
 
 PLIST_FILES=	bin/heimer \
 		share/applications/heimer.desktop \
 		share/icons/hicolor/256x256/apps/heimer.png \
 		share/metainfo/heimer.appdata.xml \
 		share/pixmaps/heimer.png
 
 PORTDOCS=	README.md
 PORTEXAMPLES=	examples/*.alz
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 
 EXAMPLES_PLIST_FILES=	${EXAMPLESDIR}/Company.alz \
 			${EXAMPLESDIR}/Family.alz \
 			${EXAMPLESDIR}/Heimer.alz \
 			${EXAMPLESDIR}/Large.alz
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/${PORTDOCS} ${STAGEDIR}${DOCSDIR}
 
 do-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	(cd ${WRKSRC}/examples && ${COPYTREE_SHARE} . ${STAGEDIR}${EXAMPLESDIR})
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/heimer
 
 .include <bsd.port.mk>
diff --git a/graphics/heimer/distinfo b/graphics/heimer/distinfo
index 46ae87db5907..9555b54c0f1d 100644
--- a/graphics/heimer/distinfo
+++ b/graphics/heimer/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1659210074
-SHA256 (heimer-3.5.0.tar.gz) = a0cd3b52406ce89ada07caef1a679d6e4a8d12edafb31b63b5f1f59246bf5e2b
-SIZE (heimer-3.5.0.tar.gz) = 1439907
+TIMESTAMP = 1661638484
+SHA256 (heimer-3.6.0.tar.gz) = 8a580a74a649fcf25fd137d2c5d5e8b4fa9634a7e943168f94aeacee210df184
+SIZE (heimer-3.6.0.tar.gz) = 1440530