diff --git a/pyproject.toml b/pyproject.toml
index 768ecc6..4e58937 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,6 +42,7 @@ mypy-testing = "pytest_mypy_testing.plugin"
 [tool.flit.sdist]
 include = ["src/pytest_mypy_testing/_version.py"]
 
+
 [tool.black]
 line-length = 88
 target-version = ['py37', 'py38', 'py39', 'py310', 'py311', 'py312']
@@ -53,6 +54,7 @@ extend-exclude = '''
 )
 '''
 
+
 [tool.coverage.run]
 include = [
     'src/*',
@@ -61,3 +63,8 @@ include = [
 ]
 data_file = 'build/coverage-data/coverage'
 parallel = true
+
+
+[tool.ruff.lint.isort]
+combine-as-imports = true
+lines-after-imports = 2
diff --git a/tox.ini b/tox.ini
index 82f66cf..22748c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,8 +5,8 @@
 isolated_build = True
 envlist =
     py37-pytest{70,74}-mypy{10,14}
-    {py38,py39,py310,py311,py312}-pytest{70,74,80}-mypy{10,18}
-    py-pytest{70,74,80}-mypy{10,18}
+    {py38,py39,py310,py311,py312}-pytest{70,81}-mypy{10,18}
+    py-pytest{70,81}-mypy{10,18}
     linting
 minversion = 3.28
 
@@ -19,7 +19,9 @@ deps =
     pytest71: pytest~=7.1.3
     pytest72: pytest~=7.2.2
     pytest74: pytest~=7.4.4
-    pytest80: pytest~=8.0.1
+    pytest80: pytest~=8.0.2
+    pytest80: pytest~=8.0.2
+    pytest81: pytest==8.1.0  # to test with the yanked version
     mypy10: mypy==1.0.1
     mypy14: mypy==1.4.1  # last version to support Python 3.7
     mypy17: mypy==1.7.1