diff --git a/setup.cfg b/setup.cfg
index adcbe17..a7db1ae 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 # https://setuptools.readthedocs.io/en/latest/setuptools.html#configuring-setup-using-setup-cfg-files
 
 [metadata]
-name = hasskisok
+name = hasskiosk
 author = Mike Bloy
 author_email = mike@bloy.org
 description = Helper application for homeassistant kiosk screens
@@ -17,6 +17,7 @@ package_dir =
     =src
 packages = find:
 install_requires =
+  environs
   paho-mqtt
 
 [options.packages.find]
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..b97cb1e
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1 @@
+"""Test configuration and fixtures."""
diff --git a/tests/test_version.py b/tests/test_version.py
new file mode 100644
index 0000000..e8b4e3f
--- /dev/null
+++ b/tests/test_version.py
@@ -0,0 +1,10 @@
+"""Test version number handling."""
+
+from importlib_metadata import version
+
+from hasskiosk import __version__
+
+
+def test_package_version_matches_dunder_version():
+    """Test that package metadata version matches the package __version__."""
+    assert __version__ == version("hasskiosk")
diff --git a/tox.ini b/tox.ini
index b07a242..afd9a9a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,12 +5,14 @@ isolated_build = True
 [testenv]
 wheel = true
 wheel_build_env = build
+basepython = python3.7
 
 [testenv:build]
 deps = setuptools
 
 [testenv:py37]
 deps =
+    importlib_metadata
     pytest
     pytest-cov
     pdbpp
@@ -32,14 +34,12 @@ commands =
 [testenv:lint]
 deps =
   flake8
-  flake8-bandit
   flake8-blind-except
   flake8-builtins
   flake8-docstrings
   flake8-executable
   flake8-isort
   flake8-logging-format
-  flake8-mypy
   pycodestyle
   pydocstyle
 commands =
@@ -51,6 +51,7 @@ commands =
 
 [testenv:dev]
 # this environment lets tox create a development env quickly and easily
+recreate=True
 deps =
     bpython
     mypy
@@ -60,7 +61,6 @@ deps =
     {[testenv:security]deps}
     {[testenv:security]deps}
     {[testenv:lint]deps}
-basepython = python3.7
 envdir = {toxinidir}/.venv
 usedevelop = True