diff --git a/meta/recipes-devtools/python/python3-rfc3339-validator/0001-Remove-usage-of-six.patch b/meta/recipes-devtools/python/python3-rfc3339-validator/0001-Remove-usage-of-six.patch
new file mode 100644
index 00000000000..ad34b21edb1
--- /dev/null
+++ b/meta/recipes-devtools/python/python3-rfc3339-validator/0001-Remove-usage-of-six.patch
@@ -0,0 +1,62 @@
+From 9e74298b018d61f93768061800fa670de8e34dfe Mon Sep 17 00:00:00 2001
+From: Ross Burton <ross.burton@arm.com>
+Date: Mon, 14 Sep 2026 22:27:29 +0100
+Subject: [PATCH] Remove usage of six
+
+The last release of Python 2 was 2.7.18, released in April 2020. Python
+was officially end-of-life in 2020.  I think it's time to stop catering
+for people using Python 2, so drop the usage of six.
+
+Closes #11.
+
+Upstream-Status: Submitted [https://github.com/naimetti/rfc3339-validator/pull/14]
+Signed-off-by: Ross Burton <ross.burton@arm.com>
+---
+ rfc3339_validator.py            | 7 +------
+ setup.py                        | 4 +---
+ tests/test_rfc3339_validator.py | 9 +--------
+ 3 files changed, 3 insertions(+), 17 deletions(-)
+
+diff --git a/rfc3339_validator.py b/rfc3339_validator.py
+index 4be5e87..efc9b7d 100644
+--- a/rfc3339_validator.py
++++ b/rfc3339_validator.py
+@@ -6,11 +6,6 @@ __version__ = '0.1.4'
+ 
+ import re
+ import calendar
+-import six
+-
+-RFC3339_REGEX_FLAGS = 0
+-if six.PY3:
+-    RFC3339_REGEX_FLAGS |= re.ASCII
+ 
+ RFC3339_REGEX = re.compile(r"""
+     ^
+@@ -30,7 +25,7 @@ RFC3339_REGEX = re.compile(r"""
+        | [+-](?:[01]\d|2[0123]):[0-5]\d # Offset
+     )
+     $
+-""", re.VERBOSE | RFC3339_REGEX_FLAGS)
++""", re.VERBOSE | re.ASCII)
+ 
+ 
+ def validate_rfc3339(date_string):
+diff --git a/setup.py b/setup.py
+index 73186bd..b9936b0 100644
+--- a/setup.py
++++ b/setup.py
+@@ -8,9 +8,7 @@ from setuptools import setup, find_packages
+ with open('README.md') as readme_file:
+     readme = readme_file.read()
+ 
+-requirements = [
+-    'six',
+-]
++requirements = []
+ 
+ setup_requirements = []
+ 
+-- 
+2.43.0
+
diff --git a/meta/recipes-devtools/python/python3-rfc3339-validator_0.1.4.bb b/meta/recipes-devtools/python/python3-rfc3339-validator_0.1.4.bb
index 242176dd757..06eb833f7a9 100644
--- a/meta/recipes-devtools/python/python3-rfc3339-validator_0.1.4.bb
+++ b/meta/recipes-devtools/python/python3-rfc3339-validator_0.1.4.bb
@@ -3,7 +3,7 @@ HOMEPAGE = "https://github.com/naimetti/rfc3339-validator"
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=a21b13b5a996f08f7e0b088aa38ce9c6"
 
-FILESEXTRAPATHS:prepend := "${THISDIR}/python-rfc3339-validator:"
+SRC_URI += "file://0001-Remove-usage-of-six.patch"
 
 SRC_URI[sha256sum] = "138a2abdf93304ad60530167e51d2dfb9549521a836871b88d7f4695d0022f6b"
 
@@ -14,7 +14,6 @@ inherit pypi setuptools3
 RDEPENDS:${PN} += "\
     python3-core \
     python3-datetime \
-    python3-six \
 "
 
 BBCLASSEXTEND = "native nativesdk"