diff --git a/backport-fix-invalid-escape-sequence-50.patch b/backport-fix-invalid-escape-sequence-50.patch
new file mode 100644
index 0000000000000000000000000000000000000000..c4dd36500acca6ea161bf990c6de046129bdbaa9
--- /dev/null
+++ b/backport-fix-invalid-escape-sequence-50.patch
@@ -0,0 +1,25 @@
+From d9ec0f5f74975dfb4ebcc18efeb4cee69aa8e788 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Stefan=20K=C3=B6gl?= <stefan@skoegl.net>
+Date: Sun, 10 Apr 2022 13:36:37 +0200
+Subject: [PATCH] Fix invalid escape sequence (#50)
+
+---
+ tests.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tests.py b/tests.py
+index dafbe89..9252369 100755
+--- a/tests.py
++++ b/tests.py
+@@ -129,7 +129,7 @@ class SpecificationTests(unittest.TestCase):
+             ("/c%d", ['c%d']),
+             ("/e^f", ['e^f']),
+             ("/g|h", ['g|h']),
+-            ("/i\\j", ['i\j']),
++            ("/i\\j", ['i\\j']),
+             ("/k\"l", ['k"l']),
+             ("/ ", [' ']),
+             ("/m~0n", ['m~n']),
+-- 
+2.27.0
+
diff --git a/python-jsonpointer.spec b/python-jsonpointer.spec
index 9789dec3a5118be70e5341dfd4633cd2c2d3da1d..ebdb361e750364ed11b682dd59f79b908cf0c06d 100644
--- a/python-jsonpointer.spec
+++ b/python-jsonpointer.spec
@@ -2,11 +2,14 @@
 
 Name:           python-%{pypi_name}
 Version:        2.2
-Release:        1
+Release:        2
 Summary:        Resolve JSON Pointers in Python
 License:        BSD
 URL:            https://github.com/stefankoegl/python-json-pointer
 Source0:        https://pypi.io/packages/source/j/%{pypi_name}/%{pypi_name}-%{version}.tar.gz
+
+Patch0:   backport-fix-invalid-escape-sequence-50.patch
+
 BuildArch:      noarch
 
 %description
@@ -51,16 +54,20 @@ ln -s ./jsonpointer-%{python3_version} %{buildroot}%{_bindir}/jsonpointer
 %doc README.md
 
 %changelog
-* Tue Nov 23 liudabo <liudabo1@huawei.com> - 2.2-1
+* Mon Oct 24 2022 zhangruifang <zhangruifang1@h-partners.com> - 2.2-2
+- fix invalid escape sequence
+- fix bad date in changelog
+
+* Tue Nov 23 2021 liudabo <liudabo1@huawei.com> - 2.2-1
 - upgrade version to 2.2
 
-* Thu Oct 29 tianwei <tianwei12@huawei.com> - 2.0-2
+* Thu Oct 29 2020 tianwei <tianwei12@huawei.com> - 2.0-2
 - Type:enhancement
 - ID:NA
 - SUG:NA
 - DESC:delete python2
 
-* Thu Jul 23 dingyue <dingyue5@huawei.com> - 2.0-1
+* Thu Jul 23 2020 dingyue <dingyue5@huawei.com> - 2.0-1
 - Type:enhancement
 - ID:NA
 - SUG:NA