diff --git a/0001-replace-obsolete-pngmath-with-imgmath.patch b/0001-replace-obsolete-pngmath-with-imgmath.patch
new file mode 100644
index 0000000000000000000000000000000000000000..796f0de289df0748036d80e1e35046062e56cbf6
--- /dev/null
+++ b/0001-replace-obsolete-pngmath-with-imgmath.patch
@@ -0,0 +1,26 @@
+diff --git a/kitchen2/docs/conf.py b/kitchen2/docs/conf.py
+index 5885d48..b699d95 100644
+--- a/kitchen2/docs/conf.py
++++ b/kitchen2/docs/conf.py
+@@ -25,7 +25,7 @@ import kitchen.release
+ 
+ # Add any Sphinx extension module names here, as strings. They can be extensions
+ # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.intersphinx', 'sphinx.ext.todo', 'sphinx.ext.coverage', 'sphinx.ext.pngmath', 'sphinx.ext.ifconfig']
++extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.intersphinx', 'sphinx.ext.todo', 'sphinx.ext.coverage', 'sphinx.ext.imgmath', 'sphinx.ext.ifconfig']
+ 
+ # Add any paths that contain templates here, relative to this directory.
+ templates_path = ['_templates']
+diff --git a/kitchen3/docs/conf.py b/kitchen3/docs/conf.py
+index 5b70a39..fdc0a3b 100644
+--- a/kitchen3/docs/conf.py
++++ b/kitchen3/docs/conf.py
+@@ -25,7 +25,7 @@ import kitchen.release
+ 
+ # Add any Sphinx extension module names here, as strings. They can be extensions
+ # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.intersphinx', 'sphinx.ext.todo', 'sphinx.ext.coverage', 'sphinx.ext.pngmath', 'sphinx.ext.ifconfig']
++extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.intersphinx', 'sphinx.ext.todo', 'sphinx.ext.coverage', 'sphinx.ext.imgmath', 'sphinx.ext.ifconfig']
+ 
+ # Add any paths that contain templates here, relative to this directory.
+ templates_path = ['_templates']
diff --git a/python-kitchen.spec b/python-kitchen.spec
index 1cd862524386980877e4b89c2a06ac4f04d7d226..fb1cccd418c3f017324ccbcc0bc9dea3726c58db 100644
--- a/python-kitchen.spec
+++ b/python-kitchen.spec
@@ -3,7 +3,7 @@
 
 Name:           python-kitchen
 Version:        1.2.6
-Release:        2
+Release:        3
 Summary:        Small, useful pieces of code to make python coding easier
 
 License:        LGPLv2+
@@ -18,6 +18,8 @@ BuildRequires:  python%{python3_pkgversion}-nose
 BuildRequires:  python%{python3_pkgversion}-test
 BuildRequires:  python%{python3_pkgversion}-chardet
 
+Patch0: 0001-replace-obsolete-pngmath-with-imgmath.patch
+
 %description
 kitchen includes functions to make gettext easier to use, handling unicode
 text easier (conversion with bytes, outputting xml, and calculating how many
@@ -117,7 +119,10 @@ popd
 %endif
 
 %changelog
-* Tue Nov 19 2019 Guoshuai Sun <sunguoshuai@huawei.com> - 1.2.6-2
+* Thu Aug 06 2020 zhangjiapeng <zhangjiapeng9@huawei.com> - 1.2.6-3
+- replace obsolete pngmath with imgmath
+
+* Wed Aug 05 2020 Guoshuai Sun <sunguoshuai@huawei.com> - 1.2.6-2
 - Del the python2 and fix build error
 
 * Sat Feb 15 2020 openEuler Buildteam <buildteam@openeuler.org> - 1.2.6-1