diff -ruN devel/libbson/Makefile devel/libbson.new/Makefile
--- devel/libbson/Makefile	2015-07-03 06:12:57.000000000 +0200
+++ devel/libbson.new/Makefile	2016-02-01 01:06:39.243836000 +0100
@@ -2,7 +2,7 @@
 # $FreeBSD: head/devel/libbson/Makefile 391214 2015-07-03 04:12:57Z wen $
 
 PORTNAME=	libbson
-PORTVERSION=	1.1.9
+PORTVERSION=	1.3.1
 CATEGORIES=	devel
 
 MAINTAINER=	waitman@waitman.net
diff -ruN devel/libbson/distinfo devel/libbson.new/distinfo
--- devel/libbson/distinfo	2015-07-03 06:12:57.000000000 +0200
+++ devel/libbson.new/distinfo	2016-02-01 01:11:55.009814000 +0100
@@ -1,2 +1,2 @@
-SHA256 (mongodb-libbson-1.1.9_GH0.tar.gz) = 3d293f54902a59e38a2e6c5a84a781e1e4514d344927d69b3e054ebe7967a064
-SIZE (mongodb-libbson-1.1.9_GH0.tar.gz) = 4037659
+SHA256 (mongodb-libbson-1.3.1_GH0.tar.gz) = 687ceeb11239474fbd8de49718ec12df2a981b1cd0b2e4a8bde3aa023880933d
+SIZE (mongodb-libbson-1.3.1_GH0.tar.gz) = 4544818
diff -ruN devel/libbson/pkg-plist devel/libbson.new/pkg-plist
--- devel/libbson/pkg-plist	2015-07-03 06:12:57.000000000 +0200
+++ devel/libbson.new/pkg-plist	2016-02-01 01:14:11.119807105 +0100
@@ -20,6 +20,7 @@
 include/libbson-1.0/bson-utf8.h
 include/libbson-1.0/bson-value.h
 include/libbson-1.0/bson-version.h
+include/libbson-1.0/bson-version-functions.h
 include/libbson-1.0/bson-writer.h
 include/libbson-1.0/bson.h
 lib/libbson-1.0.so