diff --git a/astro/mkgmap/Makefile b/astro/mkgmap/Makefile
index c3bc976f1017..5241d8a97607 100644
--- a/astro/mkgmap/Makefile
+++ b/astro/mkgmap/Makefile
@@ -2,7 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	mkgmap
-PORTVERSION=	r4248
+PORTVERSION=	r4255
 CATEGORIES=	astro converters java
 MASTER_SITES=	http://www.mkgmap.org.uk/download/ \
 		http://mirror.amdmi3.ru/distfiles/
diff --git a/astro/mkgmap/distinfo b/astro/mkgmap/distinfo
index 7371a5211a5f..342156a115cd 100644
--- a/astro/mkgmap/distinfo
+++ b/astro/mkgmap/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1541955269
-SHA256 (mkgmap-r4248.tar.gz) = 4c6c9d0798483dcab6dd9a5f022aa3617c9eaa342f5e2365a6e85b92c7e8732d
-SIZE (mkgmap-r4248.tar.gz) = 3386402
+TIMESTAMP = 1542640189
+SHA256 (mkgmap-r4255.tar.gz) = 9f3f9ddfca636e69c4c1284ab72856e7afcc4c15f67f6812cf61dde63cfcd2b1
+SIZE (mkgmap-r4255.tar.gz) = 3386988