diff --git a/python-serpent.changes b/python-serpent.changes
index b838a6b..3d45f51 100644
--- a/python-serpent.changes
+++ b/python-serpent.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Apr  2 06:58:58 UTC 2019 - pgajdos@suse.com
+
+- version update to 1.28
+  * the souce dist archive now contains the unit tests as well
+- run the testsuite
+
 -------------------------------------------------------------------
 Wed Mar  6 09:33:03 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
 
diff --git a/python-serpent.spec b/python-serpent.spec
index 59617ed..da41dd0 100644
--- a/python-serpent.spec
+++ b/python-serpent.spec
@@ -18,7 +18,7 @@
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-serpent
-Version:        1.27
+Version:        1.28
 Release:        0
 Summary:        Serialization based on astliteral_eval
 License:        MIT
@@ -29,6 +29,11 @@ BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  python-enum34
 BuildRequires:  python-rpm-macros
+# SECTION test requirements
+BuildRequires:  %{python_module attrs}
+BuildRequires:  %{python_module pytest}
+BuildRequires:  %{python_module pytz}
+# /SECTION
 BuildArch:      noarch
 %ifpython2
 Requires:       python-enum34
@@ -48,6 +53,9 @@ and de-serialize it there.
 %build
 %python_build
 
+%check
+%pytest
+
 %install
 %python_install
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
diff --git a/serpent-1.27.tar.gz b/serpent-1.27.tar.gz
deleted file mode 100644
index f38d384..0000000
--- a/serpent-1.27.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6f8dc4317fb5b5a9629b5e518846bc9fee374b8171533726dc68df52b36ee912
-size 12758
diff --git a/serpent-1.28.tar.gz b/serpent-1.28.tar.gz
new file mode 100644
index 0000000..5dcd894
--- /dev/null
+++ b/serpent-1.28.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f306336ca09aa38e526f3b03cab58eb7e45af09981267233167bcf3bfd6436ab
+size 26912