diff --git a/devel/msgpack/Makefile b/devel/msgpack/Makefile
index a57c117380cb..18782e943a09 100644
--- a/devel/msgpack/Makefile
+++ b/devel/msgpack/Makefile
@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 PORTNAME=	msgpack
-PORTVERSION=	3.1.0
+PORTVERSION=	3.1.1
 DISTVERSIONPREFIX=	cpp-
 CATEGORIES=	devel
 
@@ -11,6 +11,8 @@ COMMENT=	Efficient binary serialization, like JSON but smaller and faster
 LICENSE=	BSL
 LICENSE_FILE=	${WRKSRC}/LICENSE_1_0.txt
 
+TEST_DEPENDS=	googletest>0:devel/googletest
+
 USES=		cmake pathfix
 USE_LDCONFIG=	yes
 USE_GITHUB=	yes
diff --git a/devel/msgpack/distinfo b/devel/msgpack/distinfo
index 3c9938e501b7..326a9a27e96f 100644
--- a/devel/msgpack/distinfo
+++ b/devel/msgpack/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1534993774
-SHA256 (msgpack-msgpack-c-cpp-3.1.0_GH0.tar.gz) = 6d451d2ad6ffcd5073f56765a3a96a103a92cb148ab49f2f2e5d8db3d6676a54
-SIZE (msgpack-msgpack-c-cpp-3.1.0_GH0.tar.gz) = 485260
+TIMESTAMP = 1536499749
+SHA256 (msgpack-msgpack-c-cpp-3.1.1_GH0.tar.gz) = bda49f996a73d2c6080ff0523e7b535917cd28c8a79c3a5da54fc29332d61d1e
+SIZE (msgpack-msgpack-c-cpp-3.1.1_GH0.tar.gz) = 490058
diff --git a/devel/msgpack/pkg-plist b/devel/msgpack/pkg-plist
index 526bb6323f3b..5546ef09cf2a 100644
--- a/devel/msgpack/pkg-plist
+++ b/devel/msgpack/pkg-plist
@@ -102,6 +102,7 @@ include/msgpack/predef/architecture/m68k.h
 include/msgpack/predef/architecture/mips.h
 include/msgpack/predef/architecture/parisc.h
 include/msgpack/predef/architecture/ppc.h
+include/msgpack/predef/architecture/ptx.h
 include/msgpack/predef/architecture/pyramid.h
 include/msgpack/predef/architecture/rs6k.h
 include/msgpack/predef/architecture/sparc.h
@@ -135,6 +136,7 @@ include/msgpack/predef/compiler/metaware.h
 include/msgpack/predef/compiler/metrowerks.h
 include/msgpack/predef/compiler/microtec.h
 include/msgpack/predef/compiler/mpw.h
+include/msgpack/predef/compiler/nvcc.h
 include/msgpack/predef/compiler/palm.h
 include/msgpack/predef/compiler/pgi.h
 include/msgpack/predef/compiler/sgi_mipspro.h
@@ -161,12 +163,14 @@ include/msgpack/predef/hardware/simd/x86/versions.h
 include/msgpack/predef/hardware/simd/x86_amd.h
 include/msgpack/predef/hardware/simd/x86_amd/versions.h
 include/msgpack/predef/language.h
+include/msgpack/predef/language/cuda.h
 include/msgpack/predef/language/objc.h
 include/msgpack/predef/language/stdc.h
 include/msgpack/predef/language/stdcpp.h
 include/msgpack/predef/library.h
 include/msgpack/predef/library/c.h
 include/msgpack/predef/library/c/_prefix.h
+include/msgpack/predef/library/c/cloudabi.h
 include/msgpack/predef/library/c/gnu.h
 include/msgpack/predef/library/c/uc.h
 include/msgpack/predef/library/c/vms.h
@@ -210,12 +214,20 @@ include/msgpack/predef/os/vms.h
 include/msgpack/predef/os/windows.h
 include/msgpack/predef/other.h
 include/msgpack/predef/other/endian.h
+include/msgpack/predef/other/workaround.h
 include/msgpack/predef/platform.h
+include/msgpack/predef/platform/cloudabi.h
+include/msgpack/predef/platform/ios.h
 include/msgpack/predef/platform/mingw.h
+include/msgpack/predef/platform/mingw32.h
+include/msgpack/predef/platform/mingw64.h
 include/msgpack/predef/platform/windows_desktop.h
 include/msgpack/predef/platform/windows_phone.h
 include/msgpack/predef/platform/windows_runtime.h
+include/msgpack/predef/platform/windows_server.h
 include/msgpack/predef/platform/windows_store.h
+include/msgpack/predef/platform/windows_system.h
+include/msgpack/predef/platform/windows_uwp.h
 include/msgpack/predef/version.h
 include/msgpack/predef/version_number.h
 include/msgpack/preprocessor.hpp
@@ -421,6 +433,7 @@ include/msgpack/preprocessor/seq/cat.hpp
 include/msgpack/preprocessor/seq/detail/binary_transform.hpp
 include/msgpack/preprocessor/seq/detail/is_empty.hpp
 include/msgpack/preprocessor/seq/detail/split.hpp
+include/msgpack/preprocessor/seq/detail/to_list_msvc.hpp
 include/msgpack/preprocessor/seq/elem.hpp
 include/msgpack/preprocessor/seq/enum.hpp
 include/msgpack/preprocessor/seq/filter.hpp