diff --git a/ruby/rubygem-msgpack/rubygem-msgpack.SlackBuild b/ruby/rubygem-msgpack/rubygem-msgpack.SlackBuild
index 76746318df..76f337b803 100644
--- a/ruby/rubygem-msgpack/rubygem-msgpack.SlackBuild
+++ b/ruby/rubygem-msgpack/rubygem-msgpack.SlackBuild
@@ -25,7 +25,7 @@
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=rubygem-msgpack
-VERSION=${VERSION:-0.5.11}
+VERSION=${VERSION:-1.4.2}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
@@ -34,7 +34,7 @@ SRCNAM=msgpack
 
 if [ -z "$ARCH" ]; then
   case "$( uname -m )" in
-    i?86) ARCH=i486 ;;
+    i?86) ARCH=i586 ;;
     arm*) ARCH=arm ;;
        *) ARCH=$( uname -m ) ;;
   esac
@@ -52,8 +52,8 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
-if [ "$ARCH" = "i486" ]; then
-  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
   LIBDIRSUFFIX=""
 elif [ "$ARCH" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"
diff --git a/ruby/rubygem-msgpack/rubygem-msgpack.info b/ruby/rubygem-msgpack/rubygem-msgpack.info
index 392041e9ab..754c3996fe 100644
--- a/ruby/rubygem-msgpack/rubygem-msgpack.info
+++ b/ruby/rubygem-msgpack/rubygem-msgpack.info
@@ -1,8 +1,8 @@
 PRGNAM="rubygem-msgpack"
-VERSION="0.5.11"
+VERSION="1.2.2"
 HOMEPAGE="https://msgpack.org/"
-DOWNLOAD="https://rubygems.org/downloads/msgpack-0.5.11.gem"
-MD5SUM="7289b86b6fabf77809d89721a515688a"
+DOWNLOAD="https://rubygems.org/downloads/msgpack-1.4.2.gem"
+MD5SUM="4bffea317387a580386fa551b7711b58"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""