diff --git a/python-py7zr.changes b/python-py7zr.changes
index 3513b12..ad8c67c 100644
--- a/python-py7zr.changes
+++ b/python-py7zr.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Apr  3 12:20:11 UTC 2021 - Ismail Dönmez <idonmez@suse.com>
+
+- Fix sed line to use python3 and add a replacement for /usr/bin/python
+  as well.
+
 -------------------------------------------------------------------
 Fri Jan 22 11:45:55 UTC 2021 - ecsos <ecsos@opensuse.org>
 
diff --git a/python-py7zr.spec b/python-py7zr.spec
index a58d7f1..e000bed 100644
--- a/python-py7zr.spec
+++ b/python-py7zr.spec
@@ -22,30 +22,30 @@ Name:           python-py7zr
 Version:        0.11.3
 Release:        0
 Summary:        Library and utility to support 7zip
-License:        LGPL-2.1+
+License:        LGPL-2.1-or-later
 Group:          Development/Languages/Python
 URL:            https://github.com/miurahr/py7zr
 Source0:        https://files.pythonhosted.org/packages/source/p/py7zr/py7zr-%{version}.tar.gz
 BuildRequires:  %{python_module devel}
-BuildRequires:  %{python_module setuptools}
-BuildRequires:  %{python_module setuptools_scm}
 BuildRequires:  %{python_module pep517}
+BuildRequires:  %{python_module setuptools_scm}
+BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module wheel}
 # begin test
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module coverage}
-BuildRequires:  %{python_module toml}
-BuildRequires:  %{python_module pycryptodome}
-BuildRequires:  %{python_module texttable}
-BuildRequires:  %{python_module pylzma}
 BuildRequires:  %{python_module pathlib}
+BuildRequires:  %{python_module pycryptodome}
+BuildRequires:  %{python_module pylzma}
+BuildRequires:  %{python_module texttable}
+BuildRequires:  %{python_module toml}
 # end test
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
-Requires:       python-texttable
 Requires:       python-pycryptodome
+Requires:       python-texttable
 Requires(post): update-alternatives
-Requires(postun): update-alternatives
+Requires(postun):update-alternatives
 #BuildArch:      noarch
 %python_subpackages
 
@@ -54,7 +54,11 @@ py7zr is a library and utility to support 7zip archive compression, decompressio
 
 %prep
 %setup -q -n py7zr-%{version}
-find . -type f -name "*.py" -exec sed -i -e 's|/usr/bin/env python|/usr/bin/python|g' {} \;
+find . -type f -name "*.py" -exec sed -i \
+       -e '1s|/usr/bin/env python$|/usr/bin/python3|g' \
+       -e '1s|/usr/bin/python |/usr/bin/python3 |g' \
+       {} \;
+
 sed -i -e 's|setuptools-scm>=3.5.0|setuptools-scm|g' setup.cfg
 
 %build