diff --git a/fix_regex.patch b/fix_regex.patch
new file mode 100644
index 0000000..d2f54b0
--- /dev/null
+++ b/fix_regex.patch
@@ -0,0 +1,22 @@
+Index: pyproject_examples-2023.6.30/pyproject_examples/__init__.py
+===================================================================
+--- pyproject_examples-2023.6.30.orig/pyproject_examples/__init__.py
++++ pyproject_examples-2023.6.30/pyproject_examples/__init__.py
+@@ -159,7 +159,7 @@ bad_pep621_config = [
+ 		pytest.param(
+ 				f'{MINIMAL_CONFIG}\ndependencies = ["foo]]]"]',
+ 				InvalidRequirement,
+-				r"'foo]]]'\n    Expected end or semicolon \(after name and no valid version specifier\)\n    foo]]]\n       \^",
++				r"'foo]]]'.*",
+ 				id="dependencies_invalid_requirement",
+ 				marks=pytest.mark.skipif(sys.version_info < (3, 7), reason="Error differs on 3.6"),
+ 				),
+@@ -243,7 +243,7 @@ bad_buildsystem_config = [
+ 		pytest.param(
+ 				'[build-system]\nrequires = ["foo]]]"]',
+ 				InvalidRequirement,
+-				r"'foo]]]'\n    Expected end or semicolon \(after name and no valid version specifier\)\n    foo]]]\n       \^",
++				r"'foo]]]'.*",
+ 				id="requires_invalid_requirement",
+ 				marks=pytest.mark.skipif(sys.version_info < (3, 7), reason="Error differs on 3.6"),
+ 				),
diff --git a/python-pyproject-examples.changes b/python-pyproject-examples.changes
index 74bea7a..003df07 100644
--- a/python-pyproject-examples.changes
+++ b/python-pyproject-examples.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Feb  4 09:40:11 UTC 2026 - Marius Grossu <marius.grossu@suse.com>
+
+- Add fix_regex.patch: relax regex because of new version of packaging
+ (gh#repo-helper/pyproject-examples#52) 
+
 -------------------------------------------------------------------
 Thu Feb 27 10:00:28 UTC 2025 - ecsos <ecsos@opensuse.org>
 
diff --git a/python-pyproject-examples.spec b/python-pyproject-examples.spec
index 5c8de16..75d38ff 100644
--- a/python-pyproject-examples.spec
+++ b/python-pyproject-examples.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-pyproject-examples
 #
-# Copyright (c) 2024 SUSE LLC
+# Copyright (c) 2026 SUSE LLC and contributors
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -24,6 +24,8 @@ Summary:        Example pyproject.toml configs for testing
 License:        MIT
 URL:            https://github.com/repo-helper/pyproject-examples
 Source:         https://files.pythonhosted.org/packages/source/p/pyproject-examples/pyproject_examples-%{version}.tar.gz
+# PATCH-FIX-UPSTREAM fix_regex.patch -- based on PR
+Patch0:         fix_regex.patch
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module whey}
 BuildRequires:  fdupes