diff --git a/devel/ruby-msgpack/Makefile b/devel/ruby-msgpack/Makefile
index beb5ed1cc4c4..b79e38152486 100644
--- a/devel/ruby-msgpack/Makefile
+++ b/devel/ruby-msgpack/Makefile
@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.21 2020/02/05 14:56:57 taca Exp $
+# $NetBSD: Makefile,v 1.22 2021/02/03 14:10:42 taca Exp $
 
-DISTNAME=	msgpack-1.3.3
+DISTNAME=	msgpack-1.4.2
 CATEGORIES=	devel
 
 MAINTAINER=	pkgsrc-users@NetBSD.org
diff --git a/devel/ruby-msgpack/PLIST b/devel/ruby-msgpack/PLIST
index 1ba6cf32e5e8..5045c9ee024d 100644
--- a/devel/ruby-msgpack/PLIST
+++ b/devel/ruby-msgpack/PLIST
@@ -1,4 +1,4 @@
-@comment $NetBSD: PLIST,v 1.11 2019/10/30 15:14:10 taca Exp $
+@comment $NetBSD: PLIST,v 1.12 2021/02/03 14:10:42 taca Exp $
 ${GEM_HOME}/cache/${GEM_NAME}.gem
 ${GEM_EXTSDIR}/gem.build_complete
 ${GEM_EXTSDIR}/msgpack/msgpack.${RUBY_DLEXT}
@@ -8,7 +8,7 @@ ${GEM_LIBDIR}/.travis.yml
 ${GEM_LIBDIR}/ChangeLog
 ${GEM_LIBDIR}/Gemfile
 ${GEM_LIBDIR}/LICENSE
-${GEM_LIBDIR}/README.rdoc
+${GEM_LIBDIR}/README.md
 ${GEM_LIBDIR}/Rakefile
 ${GEM_LIBDIR}/appveyor.yml
 ${GEM_LIBDIR}/bench/pack.rb
diff --git a/devel/ruby-msgpack/distinfo b/devel/ruby-msgpack/distinfo
index 1e63d79607f1..49310227cc8e 100644
--- a/devel/ruby-msgpack/distinfo
+++ b/devel/ruby-msgpack/distinfo
@@ -1,6 +1,6 @@
-$NetBSD: distinfo,v 1.20 2020/02/05 14:56:57 taca Exp $
+$NetBSD: distinfo,v 1.21 2021/02/03 14:10:42 taca Exp $
 
-SHA1 (msgpack-1.3.3.gem) = 2f24b39cb4a42cc1d5405eeb46c5ebe21b5a9e27
-RMD160 (msgpack-1.3.3.gem) = 11eddf012d418d934196392df59fa5ddffb98dd8
-SHA512 (msgpack-1.3.3.gem) = 18d78cac70a14a22fab6f7743f702cbb1a636434e881dff5b6eec89be137a47fac1649e143dfa8c3c9e65ccc099b2b3c778cb333613d750cb6b296e3ce7db3c9
-Size (msgpack-1.3.3.gem) = 82432 bytes
+SHA1 (msgpack-1.4.2.gem) = dae113d4e20eb053c27d251939cfa58b97274acc
+RMD160 (msgpack-1.4.2.gem) = 8889fdba5242c59843b0b6d90fe850959429d8f8
+SHA512 (msgpack-1.4.2.gem) = b2f703fdb401c023dfb3064cb9c4b8f1458c0420c6f6f17bdc9230aef1a6f943a605a3f7369a20e7402e98db77a62fadc90aab40de90fdf6ea16924f33eb7ff8
+Size (msgpack-1.4.2.gem) = 83456 bytes