diff --git a/gnome-doc-utils-0.20.10-python3-issues.patch b/gnome-doc-utils-0.20.10-python3-issues.patch
new file mode 100644
index 0000000..f79a8a9
--- /dev/null
+++ b/gnome-doc-utils-0.20.10-python3-issues.patch
@@ -0,0 +1,22 @@
+diff --git a/xml2po/xml2po/__init__.py b/xml2po/xml2po/__init__.py
+index 00f4bbd..100f19b 100644
+--- a/xml2po/xml2po/__init__.py
++++ b/xml2po/xml2po/__init__.py
+@@ -464,7 +464,7 @@ class XMLDocument(object):
+             norm_outtxt = self.normalizeString(outtxt, self.app.isSpacePreserveNode(node))
+             translation = self.app.getTranslation(norm_outtxt)
+         else:
+-            translation = outtxt.decode('utf-8')
++            translation = outtxt.encode('utf-8').decode('utf-8')
+ 
+         starttag = self.startTagForNode(node)
+         endtag = self.endTagForNode(node)
+@@ -556,7 +556,7 @@ class Main(object):
+         elif output == '-':
+             self.out = sys.stdout
+         else:
+-            self.out = file(output, 'w')
++            self.out = open(output, 'w')
+ 
+     def load_mode(self, modename):
+         try:
diff --git a/gnome-doc-utils.spec b/gnome-doc-utils.spec
index d0b7c9e..425cafa 100644
--- a/gnome-doc-utils.spec
+++ b/gnome-doc-utils.spec
@@ -1,12 +1,13 @@
 Name:          gnome-doc-utils
 Version:       0.20.10
-Release:       20
+Release:       21
 Summary:       A collection of documentation utilities for the Gnome project
 License:       GPL-2.0-or-later and LGPL-2.0-or-later and GFDL-1.1-only
 URL:           https://wiki.gnome.org/Projects/GnomeDocUtils
 Source:        https://download.gnome.org/sources/%{name}/0.20/%{name}-%{version}.tar.xz
 Patch0001:     gnome-doc-utils-0.14.0-package.patch
 Patch0002:     gnome-doc-utils-0.20.10-python3.patch
+Patch0003:     gnome-doc-utils-0.20.10-python3-issues.patch
 
 BuildArch:     noarch
 BuildRequires: gcc
@@ -65,6 +66,9 @@ sed -i -e '/^Requires:/d' %{buildroot}%{_datadir}/pkgconfig/xml2po.pc
 %{_mandir}/man1/xml2po.1*
 
 %changelog
+* Mon Jan 30 2023 xuxiangxiang <xiangxiang.xu@i-soft.com.cn> -0.20.10-21
+- Solve the problem of upgrading to python3
+
 * Tue Jul 26 2022 yaoxin <yaoxin30@h-partners.com> - 0.20.10-20
 - License compliance rectification