diff --git a/README.md b/README.md
index ae4ed11..8f6beb9 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ A napari plugin for keypoint annotation, also used within DeepLabCut!
 
 If you installed DeepLabCut[gui], this plugin is already installed. However, you can also use this as a stand-alone keypoint annotator without using DeepLabCut. Instructions below!
 
-Start by installing PySide6 with `pip install "pyside6<6.3.2"`; this is the library we now use to build GUIs.
+Start by installing PySide6 with `pip install "pyside6==6.4.2"`; this is the library we now use to build GUIs.
 
 You can then install `napari-deeplabcut` via [pip]:
 
diff --git a/pyproject.toml b/pyproject.toml
index cbf294d..f8296a1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,3 +5,6 @@ build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
 write_to = "src/napari_deeplabcut/_version.py"
+
+[tool.pytest.ini_options]
+qt_api = "pyside6"
diff --git a/setup.cfg b/setup.cfg
index 6cf9104..3f8a51d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,5 @@
 [metadata]
 name = napari-deeplabcut
-version = 0.2.1.3
 description =napari + DeepLabCut annotation tool
 long_description = file: README.md
 long_description_content_type = text/markdown
@@ -17,7 +16,6 @@ classifiers =
     Operating System :: OS Independent
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Topic :: Scientific/Engineering :: Artificial Intelligence
@@ -43,7 +41,7 @@ install_requires =
     qtpy>=2.4
     scikit-image
     tables
-python_requires = >=3.8
+python_requires = >=3.9
 include_package_data = True
 package_dir =
     =src
@@ -59,7 +57,6 @@ napari.manifest =
 
 [options.extras_require]
 testing =
-    napari
     pyside6==6.4.2
     pytest
     pytest-cov
diff --git a/tox.ini b/tox.ini
index 5707153..c715870 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,10 @@
 # For more information about tox, see https://tox.readthedocs.io/en/latest/
 [tox]
-envlist = py{38,39,310}-{linux,macos,windows}
+envlist = py{39,310}-{linux,macos,windows}
 isolated_build=true
 
 [gh-actions]
 python =
-    3.8: py38
     3.9: py39
     3.10: py310
 
@@ -26,6 +25,7 @@ passenv =
     DISPLAY
     XAUTHORITY
     NUMPY_EXPERIMENTAL_ARRAY_FUNCTION
+    PYTEST_QT_API
     PYVISTA_OFF_SCREEN
 extras =
     testing