diff --git a/math/gdcalc/Makefile b/math/gdcalc/Makefile
index f1bd602384fc..de006850b9e7 100644
--- a/math/gdcalc/Makefile
+++ b/math/gdcalc/Makefile
@@ -6,9 +6,9 @@
 #
 
 PORTNAME=	gdcalc
-PORTVERSION=	2.12
+PORTVERSION=	2.13
 CATEGORIES=	math
-MASTER_SITES=	http://sedumi.freeshell.org/unix/
+MASTER_SITES=	http://bhepple.freeshell.org/dcalc/unix/
 
 MAINTAINER=	Jan.Stocker@t-online.de
 
diff --git a/math/gdcalc/distinfo b/math/gdcalc/distinfo
index 44e4b8b5f312..cf4df49333c1 100644
--- a/math/gdcalc/distinfo
+++ b/math/gdcalc/distinfo
@@ -1 +1 @@
-MD5 (gdcalc-2.12.tar.gz) = 8ae54421f6d45336119228e8c8309e56
+MD5 (gdcalc-2.13.tar.gz) = b810a64709d49f7ac5372f6dc63ed35d