diff --git a/antlr4-python3-runtime-4.8.tar.gz b/antlr4-python3-runtime-4.8.tar.gz
deleted file mode 100644
index b2b43d7..0000000
--- a/antlr4-python3-runtime-4.8.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:15793f5d0512a372b4e7d2284058ad32ce7dd27126b105fb0b2245130445db33
-size 112404
diff --git a/antlr4-python3-runtime-4.9.1.tar.gz b/antlr4-python3-runtime-4.9.1.tar.gz
new file mode 100644
index 0000000..86387f3
--- /dev/null
+++ b/antlr4-python3-runtime-4.9.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:759eddb70061ff7387bc877f5b59e3344ab374843604f757afa5b308cb68669a
+size 173261
diff --git a/python-antlr4-python3-runtime.changes b/python-antlr4-python3-runtime.changes
index e8bc8b1..cd72434 100644
--- a/python-antlr4-python3-runtime.changes
+++ b/python-antlr4-python3-runtime.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Sun Jan 31 10:41:57 UTC 2021 - andy great <andythe_great@pm.me>
+
+- Update to version 4.9.1.
+  * Improve python3 performance by adding slots
+  * Fix incorrect python token string templates
+- Add testing.
+- Skip python2 because this is for python3.
+- Use python_alternative
+
 -------------------------------------------------------------------
 Wed Apr 29 12:49:38 UTC 2020 - John Paul Adrian Glaubitz <adrian.glaubitz@suse.com>
 
diff --git a/python-antlr4-python3-runtime.spec b/python-antlr4-python3-runtime.spec
index f850984..b660a1a 100644
--- a/python-antlr4-python3-runtime.spec
+++ b/python-antlr4-python3-runtime.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-antlr4-python3-runtime
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,8 +17,9 @@
 
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
+%define         skip_python2 1
 Name:           python-antlr4-python3-runtime
-Version:        4.8
+Version:        4.9.1
 Release:        0
 Summary:        ANTLR runtime for Python 3
 License:        BSD-3-Clause
@@ -28,6 +29,8 @@ Source1:        LICENSE.txt
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
 BuildArch:      noarch
 %if %{python3_version_nodots} < 35
 Requires:       python-typing
@@ -49,11 +52,24 @@ cp %{SOURCE1} LICENSE.txt
 
 %install
 %python_install
+%python_clone -a %{buildroot}%{_bindir}/pygrun
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
+%prepare_alternative pygrun
+
+%post
+%python_install_alternative pygrun
+
+%postun
+%python_uninstall_alternative pygrun
+
+%check
+%pyunittest discover -v --pattern "*.py" --start-directory test
 
 %files %{python_files}
 %doc README.txt
 %license LICENSE.txt
-%{python_sitelib}/*
+%python_alternative %{_bindir}/pygrun
+%{python_sitelib}/antlr4_python3_runtime-*.egg-info
+%{python_sitelib}/antlr4
 
 %changelog