diff --git a/games/hedgewars/Makefile b/games/hedgewars/Makefile
index 720aecc157e3..9f07ef58a23a 100644
--- a/games/hedgewars/Makefile
+++ b/games/hedgewars/Makefile
@@ -3,7 +3,7 @@
 
 PORTNAME=	hedgewars
 PORTVERSION=	1.0.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	games
 MASTER_SITES=	http://www.hedgewars.org/download/releases/ \
 		http://mirror.amdmi3.ru/distfiles/
diff --git a/lang/nbc/Makefile b/lang/nbc/Makefile
index 78ec6bf7290d..3dc3ff386b0d 100644
--- a/lang/nbc/Makefile
+++ b/lang/nbc/Makefile
@@ -3,7 +3,7 @@
 
 PORTNAME=		nbc
 PORTVERSION=		1.2.1.r4
-PORTREVISION=		16
+PORTREVISION=		17
 CATEGORIES=		lang
 MASTER_SITES=		SF/bricxcc/NBC_NXC/NBC%20release%20${PORTVERSION:S/.r/%20r/}
 DISTNAME=		${PORTNAME}-${PORTVERSION}.src
diff --git a/science/checkmol/Makefile b/science/checkmol/Makefile
index 1391bb52ba65..b678f597c30f 100644
--- a/science/checkmol/Makefile
+++ b/science/checkmol/Makefile
@@ -3,9 +3,9 @@
 
 PORTNAME=	checkmol
 PORTVERSION=	0.5
-PORTREVISION=	8
+PORTREVISION=	9
 CATEGORIES=	science
-MASTER_SITES=	http://merian.pch.univie.ac.at/pch/download/chemistry/checkmol/
+MASTER_SITES=	https://homepage.univie.ac.at/norbert.haider/download/chemistry/checkmol/
 DISTFILES=	${PORTNAME}
 EXTRACT_SUFX=	.pas
 
diff --git a/science/mol2ps/Makefile b/science/mol2ps/Makefile
index faf8e54fbb35..0d1bc7dc07ae 100644
--- a/science/mol2ps/Makefile
+++ b/science/mol2ps/Makefile
@@ -3,9 +3,9 @@
 
 PORTNAME=	mol2ps
 PORTVERSION=	0.4b
-PORTREVISION=	6
+PORTREVISION=	7
 CATEGORIES=	science
-MASTER_SITES=	http://merian.pch.univie.ac.at/pch/download/chemistry/${PORTNAME}/
+MASTER_SITES=	https://homepage.univie.ac.at/norbert.haider/download/chemistry/mol2ps/
 DISTNAME=	${PORTNAME}
 EXTRACT_SUFX=	.pas
 DIST_SUBDIR=	${PORTNAME}-${PORTVERSION}