diff --git a/patches/series b/patches/series
index b1c2eb92..4e96b0ba 100644
--- a/patches/series
+++ b/patches/series
@@ -2,6 +2,7 @@ upstream-fixes/glue_core_pools.patch
 upstream-fixes/hardware_destructive_interference_size.patch
 upstream-fixes/missing-dependencies.patch
 upstream-fixes/fix-crash-without-enterprise-cloud-content-analysis.patch
+upstream-fixes/fix-python-codecs-deprecation.patch
 
 core/inox-patchset/0001-fix-building-without-safebrowsing.patch
 core/inox-patchset/0003-disable-autofill-download-manager.patch
diff --git a/patches/upstream-fixes/fix-python-codecs-deprecation.patch b/patches/upstream-fixes/fix-python-codecs-deprecation.patch
new file mode 100644
index 00000000..0f152998
--- /dev/null
+++ b/patches/upstream-fixes/fix-python-codecs-deprecation.patch
@@ -0,0 +1,39 @@
+From 9c7aa2956eebd3f739dc9f60d041923cdb9ffa06 Mon Sep 17 00:00:00 2001
+From: jj <jj@imput.net>
+Date: Thu, 06 Nov 2025 09:27:04 -0800
+Subject: [PATCH] Remove unneeded codecs usage in mojom_parser
+
+Python >=3.14 loudly complains on every mojom_parser use, with:
+
+DeprecationWarning: codecs.open() is deprecated. Use open() instead.
+
+`codecs` has not been useful for a long time, so let's drop it,
+and simply call open() instead.
+
+Change-Id: Iaf4ab7bcdefb4c2b31aa825bac5d79970db0ba46
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7123066
+Reviewed-by: Tom Sepez <tsepez@chromium.org>
+Commit-Queue: Oksana Zhuravlova <oksamyt@chromium.org>
+Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#1541277}
+---
+
+--- a/mojo/public/tools/mojom/mojom_parser.py
++++ b/mojo/public/tools/mojom/mojom_parser.py
+@@ -12,7 +12,6 @@ generate usable language bindings.
+ 
+ import argparse
+ import builtins
+-import codecs
+ import errno
+ import json
+ import logging
+@@ -180,7 +179,7 @@ def _CollectAllowedImportsFromBuildMetad
+ 
+ # multiprocessing helper.
+ def _ParseAstHelper(mojom_abspath, enabled_features):
+-  with codecs.open(mojom_abspath, encoding='utf-8') as f:
++  with open(mojom_abspath, encoding='utf-8') as f:
+     ast = parser.Parse(f.read(), mojom_abspath)
+     conditional_features.RemoveDisabledDefinitions(ast, enabled_features)
+     return mojom_abspath, ast