diff --git a/goodman_pipeline/core/tests/test_check_version.py b/goodman_pipeline/core/tests/test_check_version.py
index 15a5f756..e856dc4b 100644
--- a/goodman_pipeline/core/tests/test_check_version.py
+++ b/goodman_pipeline/core/tests/test_check_version.py
@@ -7,7 +7,7 @@
 
 from importlib.metadata import version
 
-from goodman_pipeline.core import check_version
+from ..core import check_version
 
 __version__ = version('goodman_pipeline')
 
diff --git a/tox.ini b/tox.ini
index 698f455a..347940ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,29 +1,15 @@
 [tox]
-envlist = 
+env_list =
     py{38, 39, 310, 311, 312}-test{,-cov}
-
-isolated_build = true
+minversion = 4.4.12
 
 [testenv]
-setenv = 
-    MPLBACKEND=agg
-allowlist_externals = *
-
-passenv = HOME,WINDIR,LC_ALL,LC_CTYPE,CC,CI
-
-changedir = .tmp/{envname}
-
-description = 
-    run tests
-    cov: also test coverage
-
+description = run the tests with pytest
+package = wheel
+wheel_build_env = .pkg
 deps =
-    cov: pytest-cov
-    cov: mock
-
+    pytest>=6
+    pytest-cov
+    mock
 commands =
-    pip freeze
-    pytest '{toxinidir}/goodman_pipeline' {posargs}
-    cov: pytest --pyargs goodman_pipeline --cov goodman_pipeline {posargs}
-    cov: coverage xml -o '{toxinidir}/coverage.xml'
-    html: coverage html -d .coverage_html
\ No newline at end of file
+    pytest {tty:--color=yes} {posargs}