diff --git a/.cookiecutterrc b/.cookiecutterrc
deleted file mode 100644
index d88512d..0000000
--- a/.cookiecutterrc
+++ /dev/null
@@ -1,69 +0,0 @@
-# This file exists so you can easily regenerate your project.
-#
-# `cookiepatcher` is a convenient shim around `cookiecutter`
-# for regenerating projects (it will generate a .cookiecutterrc
-# automatically for any template). To use it:
-#
-#    pip install cookiepatcher
-#    cookiepatcher gh:ionelmc/cookiecutter-pylibrary project-path
-#
-# See:
-#    https://pypi.org/project/cookiepatcher
-#
-# Alternatively, you can run:
-#
-#    cookiecutter --overwrite-if-exists --config-file=project-path/.cookiecutterrc gh:ionelmc/cookiecutter-pylibrary
-
-default_context:
-
-    _extensions:               ['jinja2_time.TimeExtension']
-    _template:                 'gh:ionelmc/cookiecutter-pylibrary'
-    allow_tests_inside_package: 'no'
-    appveyor:                  'no'
-    c_extension_function:      'longest'
-    c_extension_module:        '_oemof.network'
-    c_extension_optional:      'no'
-    c_extension_support:       'no'
-    c_extension_test_pypi:     'no'
-    c_extension_test_pypi_username: 'oemof'
-    codacy:                    'yes'
-    codacy_projectid:          'CODACY_PROJECT_ID'
-    codeclimate:               'yes'
-    codecov:                   'no'
-    command_line_interface:    'no'
-    command_line_interface_bin_name: 'oemof.network'
-    coveralls:                 'yes'
-    coveralls_token:           'COVERALLSTOKEN'
-    distribution_name:         'oemof.network'
-    email:                     'gnn.code@gmail.com'
-    full_name:                 'Stephan Günther'
-    landscape:                 'no'
-    license:                   'MIT license'
-    linter:                    'flake8'
-    package_name:              'oemof.network'
-    project_name:              'oemof.network'
-    project_short_description: 'The network/graph submodules of oemof.'
-    pypi_badge:                'yes'
-    pypi_disable_upload:       'no'
-    release_date:              '2020-04-01'
-    repo_hosting:              'github.com'
-    repo_hosting_domain:       'github.com'
-    repo_name:                 'oemof.network'
-    repo_username:             'oemof'
-    requiresio:                'yes'
-    scrutinizer:               'yes'
-    setup_py_uses_setuptools_scm: 'no'
-    setup_py_uses_test_runner: 'no'
-    sphinx_docs:               'yes'
-    sphinx_docs_hosting:       'https://oemof-network.readthedocs.io/'
-    sphinx_doctest:            'no'
-    sphinx_theme:              'sphinx-rtd-theme'
-    test_matrix_configurator:  'yes'
-    test_matrix_separate_coverage: 'yes'
-    test_runner:               'nose'
-    travis:                    'yes'
-    travis_osx:                'no'
-    version:                   '0.5.0.alpha1'
-    website:                   'https://oemof.org/'
-    year_from:                 '2020'
-    year_to:                   '2020'
diff --git a/.github/workflows/tox_pytests.yml b/.github/workflows/tox_pytests.yml
index c661af0..5d33d81 100644
--- a/.github/workflows/tox_pytests.yml
+++ b/.github/workflows/tox_pytests.yml
@@ -6,9 +6,7 @@ on:
       - master
       - dev
   pull_request:
-    branches:
-      - master
-      - dev
+  
   workflow_dispatch:
   schedule:
     - cron: "0 5 * * 6"  # 5:00 UTC every Saturday
diff --git a/docs/conf.py b/docs/conf.py
index 95d87c1..d15d795 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -20,7 +20,7 @@
 year = "2020"
 author = "Stephan Günther"
 copyright = "{0}, {1}".format(year, author)
-version = release = "0.5.0.alpha1"
+version = release = "0.5.0a2"
 
 pygments_style = "trac"
 templates_path = ["."]
diff --git a/setup.py b/setup.py
index e02e34d..e59b06f 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def read(*names, **kwargs):
 
 setup(
     name="oemof.network",
-    version="0.5.0.alpha1",
+    version="0.5.0a2",
     license="MIT",
     description="The network/graph submodules of oemof.",
     long_description=long_description,
diff --git a/src/oemof/network/__init__.py b/src/oemof/network/__init__.py
index 5e7ebf4..e2cdec9 100644
--- a/src/oemof/network/__init__.py
+++ b/src/oemof/network/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.5.0.alpha1"
+__version__ = "0.5.0a2"
 
 from . import energy_system
 from . import graph