diff --git a/Ports/AvailablePorts.md b/Ports/AvailablePorts.md
index 6dca4f742bb..acc499120cf 100644
--- a/Ports/AvailablePorts.md
+++ b/Ports/AvailablePorts.md
@@ -314,7 +314,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`SDL_mixer`](SDL_mixer/)                       | SDL_mixer (Audio mixer add-on for SDL 1.2)                    | 1.2.12                 | https://www.libsdl.org/projects/SDL_mixer/release-1.2.html           |
 | [`SDL_sound`](SDL_sound/)                       | SDL_sound (Abstract soundfile decoder add-on for SDL 1.2)     | 1.0.3                  | https://www.icculus.org/SDL_sound/                                   |
 | [`SDLPoP`](SDLPoP/)                             | Prince of Persia game                                         | 86988c6                | https://github.com/NagyD/SDLPoP                                      |
-| [`sed`](sed/)                                   | GNU sed                                                       | 4.9                    | https://www.gnu.org/software/sed/                                    |
+| [`sed`](sed/)                                   | GNU sed                                                       | 4.10                   | https://www.gnu.org/software/sed/                                    |
 | [`serenity-theming`](serenity-theming/)         | SerenityOS theming                                            | 955c253                | https://github.com/SerenityOS/theming                                |
 | [`serious-sam-classic`](serious-sam-classic/)   | Serious Sam - The First Encounter                             | 1.10.4                 | https://github.com/tx00100xt/SeriousSamClassic                       |
 | [`sfinx`](sfinx/)                               | Sfinx                                                         | 1.1                    | https://www.scummvm.org/games/#games-sfinx                           |
diff --git a/Ports/sed/package.sh b/Ports/sed/package.sh
index 409535196f2..f5baf6fa1f8 100755
--- a/Ports/sed/package.sh
+++ b/Ports/sed/package.sh
@@ -1,9 +1,11 @@
 #!/usr/bin/env -S bash ../.port_include.sh
-port=sed
-version=4.9
-useconfigure="true"
-use_fresh_config_sub="true"
-config_sub_paths=("build-aux/config.sub")
+port='sed'
+version='4.10'
+useconfigure='true'
+use_fresh_config_sub='true'
+config_sub_paths=(
+    'build-aux/config.sub'
+)
 files=(
-    "mirror://gnu/sed/sed-${version}.tar.gz#d1478a18f033a73ac16822901f6533d30b6be561bcbce46ffd7abce93602282e"
+    "mirror://gnu/sed/sed-${version}.tar.gz#4d179ffaf92ec4dcec541f7c032be1c3b9a1856f4970adb95a505221702f5277"
 )
diff --git a/Ports/sed/patches/0001-gnulib-Port-getlocalename_l_unsafe-to-SerenityOS.patch b/Ports/sed/patches/0001-gnulib-Port-getlocalename_l_unsafe-to-SerenityOS.patch
new file mode 100644
index 00000000000..a539b5a68bf
--- /dev/null
+++ b/Ports/sed/patches/0001-gnulib-Port-getlocalename_l_unsafe-to-SerenityOS.patch
@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Eduardo Casadei <educasadei@gmail.com>
+Date: Thu, 10 Sep 2026 18:00:40 -0400
+Subject: [PATCH] gnulib: Port getlocalename_l_unsafe to SerenityOS
+
+---
+ gnulib-tests/getlocalename_l-unsafe.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/gnulib-tests/getlocalename_l-unsafe.c b/gnulib-tests/getlocalename_l-unsafe.c
+index cac2f35b62b4f7b2a3b1acdf3a287b5edf92f072..33b8e09c98b7a8dc71f5cf07c5a6d43fb0e22436 100644
+--- a/gnulib-tests/getlocalename_l-unsafe.c
++++ b/gnulib-tests/getlocalename_l-unsafe.c
+@@ -658,6 +658,10 @@ getlocalename_l_unsafe (int category, locale_t locale)
+       };
+       const char *name = ((struct __locale_t *) locale)->mb_cur_max == 4 ? "C.UTF-8" : "C";
+       return (struct string_with_storage) { name, STORAGE_INDEFINITE };
++#elif defined __serenity__
++#   undef getlocalename_l
++      const char *name = getlocalename_l (category, locale);
++      return (struct string_with_storage) { name, STORAGE_OBJECT };
+ #else
+  #error "Please port gnulib getlocalename_l-unsafe.c to your platform! Report this to bug-gnulib."
+ #endif
diff --git a/Ports/sed/patches/ReadMe.md b/Ports/sed/patches/ReadMe.md
new file mode 100644
index 00000000000..3022203dc75
--- /dev/null
+++ b/Ports/sed/patches/ReadMe.md
@@ -0,0 +1,7 @@
+# Patches for sed on SerenityOS
+
+## `0001-gnulib-Port-getlocalename_l_unsafe-to-SerenityOS.patch`
+
+gnulib: Port getlocalename_l_unsafe to SerenityOS
+
+