diff --git a/development/scite/README b/development/scite/README
index 0f630cf3e73..999914c233c 100644
--- a/development/scite/README
+++ b/development/scite/README
@@ -4,10 +4,16 @@ for building and running programs. It is best used for jobs with simple
 configurations.
 
 There are example configuration files provided with the tarball.
-If you'd like to use it (at your own risk),
-see the different options at http://www.scintilla.org/SciTEDoc.html,
-rename SciTEUser.properties.new to .SciTEUser.properties,
-and place it in your user's homedir.
+If you'd like to use it (at your own risk), see the different options at
+http://www.scintilla.org/SciTEDoc.html, rename SciTEUser.properties.new
+to .SciTEUser.properties, and place it in your user's homedir.
 
-Please look into /usr/doc/scite-3.7.4 after installation to find
-the example configuration files and additional documentation.
+Please look into /usr/doc/scite-3.7.4 after installation to find the
+example configuration files and additional documentation.
+
+Set the TRANSLATION variable to a valid language code to install the
+locale.<language>.properties in place of the upstream one.
+
+See
+https://github.com/moltenform/scite-files/blob/main/files/translations_list.md
+for a list of valid locales.
diff --git a/development/scite/StringList.cxx.patch b/development/scite/StringList.cxx.patch
deleted file mode 100644
index 86fa3d2a60a..00000000000
--- a/development/scite/StringList.cxx.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- StringList.cxx	2023-07-26 07:50:38.000000000 +0200
-+++ StringList.cxx.patched	2023-09-13 10:25:52.002946469 +0200
-@@ -8,6 +8,7 @@
- #include <cstdlib>
- #include <cassert>
- #include <cstring>
-+#include <cstddef>
- 
- #include <tuple>
- #include <string>
diff --git a/development/scite/scite.SlackBuild b/development/scite/scite.SlackBuild
index e9f844d85d7..3c0f30db5d9 100644
--- a/development/scite/scite.SlackBuild
+++ b/development/scite/scite.SlackBuild
@@ -4,6 +4,7 @@
 
 # Ryan P.C. McQuen | Everett, WA | ryanpcmcquen@member.fsf.org
 # 2017 | Dhaby Xiloj | slack.dhabyx@gmail.com
+# 2024 | rc_05 | contact@rc-05.com
 
 # Written by Iskar Enev <iskar.enev[@]gmail.com>
 # Some modifications by Jens Weber <jens@tuxane.com>
@@ -29,7 +30,7 @@
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=scite
-VERSION=${VERSION:-5.3.7}
+VERSION=${VERSION:-5.5.3}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
@@ -42,9 +43,6 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
-# the name of the created package would be, and then exit. This information
-# could be useful to other scripts.
 if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
   exit 0
@@ -54,7 +52,7 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 HELPBROWSER=mozilla
-
+TRANSLATION=${TRANSLATION:-}
 
 if [ "$ARCH" = "i586" ]; then
  LIBDIRSUFFIX=""
@@ -76,9 +74,6 @@ tar xvf $CWD/${PRGNAM}$(echo $VERSION | tr -d .).tgz
 chown -R root:root lexilla/ scite/ scintilla/
 chmod -R u+w,go+r-w,a-s lexilla/ scite/ scintilla/
 
-# Patch to fix missing cstddef header file.
-patch scite/src/StringList.cxx $CWD/StringList.cxx.patch
-
 cd $TMP/lexilla
 make -C src
 
@@ -101,6 +96,10 @@ mkdir -p $PKG/usr/share/scite
 mkdir -p $PKG/usr/man/man1
 cat doc/scite.1 | gzip -9c > $PKG/usr/man/man1/scite.1.gz
 
+if [ ! -z "${TRANSLATION}" ]; then
+  cp $CWD/locale.$TRANSLATION.properties $PKG/usr/share/scite/locale.properties
+fi
+
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/html
 cp -a README License.txt  $PKG/usr/doc/$PRGNAM-$VERSION
 cat src/SciTEGlobal.properties >> $PKG/usr/doc/$PRGNAM-$VERSION/SciTEGlobal.properties.new
diff --git a/development/scite/scite.info b/development/scite/scite.info
index c91a649a32d..d967960febd 100644
--- a/development/scite/scite.info
+++ b/development/scite/scite.info
@@ -1,10 +1,10 @@
 PRGNAM="scite"
-VERSION="5.3.7"
+VERSION="5.5.3"
 HOMEPAGE="https://scintilla.org/SciTE.html"
-DOWNLOAD="https://scintilla.org/scite537.tgz"
-MD5SUM="4a4bc59da93deb4b75e5b0e15f2661c5"
+DOWNLOAD="https://scintilla.org/scite553.tgz"
+MD5SUM="e8986fc68ae2259509b9d95ef54a6658"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""
-MAINTAINER="rc-05"
-EMAIL="rc_o5@protonmail.com"
+MAINTAINER="rc_05"
+EMAIL="contact@rc-05.com"