diff --git a/pyproject.toml b/pyproject.toml
index eb58fef..7483076 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     "attrs>=19.0",
     "filelock>=3.0",
     "mypy>=1.0",
-    "pytest>=4.6",
+    "pytest>=7.0",
 ]
 
 [project.entry-points.pytest11]
diff --git a/src/pytest_mypy.py b/src/pytest_mypy.py
index 4a272ff..76eb0af 100644
--- a/src/pytest_mypy.py
+++ b/src/pytest_mypy.py
@@ -1,7 +1,6 @@
 """Mypy static type checker plugin for Pytest"""
 
 import json
-import os
 from pathlib import Path
 from tempfile import NamedTemporaryFile
 from typing import Dict, List, Optional, TextIO
@@ -10,10 +9,9 @@
 import attr
 from filelock import FileLock  # type: ignore
 import mypy.api
-import pytest  # type: ignore
+import pytest
 
 
-PYTEST_MAJOR_VERSION = int(pytest.__version__.partition(".")[0])
 mypy_argv = []
 nodeid_name = "mypy"
 terminal_summary_title = "mypy"
@@ -126,27 +124,9 @@ def pytest_collect_file(file_path, parent):
     return None
 
 
-if PYTEST_MAJOR_VERSION < 7:  # pragma: no cover
-    _pytest_collect_file = pytest_collect_file
-
-    def pytest_collect_file(path, parent):  # type: ignore
-        try:
-            # https://docs.pytest.org/en/7.0.x/deprecations.html#py-path-local-arguments-for-hooks-replaced-with-pathlib-path
-            return _pytest_collect_file(Path(str(path)), parent)
-        except TypeError:
-            # https://docs.pytest.org/en/7.0.x/deprecations.html#fspath-argument-for-node-constructors-replaced-with-pathlib-path
-            return MypyFile.from_parent(parent=parent, fspath=path)
-
-
 class MypyFile(pytest.File):
     """A File that Mypy will run on."""
 
-    @classmethod
-    def from_parent(cls, *args, **kwargs):
-        """Override from_parent for compatibility."""
-        # pytest.File.from_parent did not exist before pytest 5.4.
-        return getattr(super(), "from_parent", cls)(*args, **kwargs)
-
     def collect(self):
         """Create a MypyFileItem for the File."""
         yield MypyFileItem.from_parent(parent=self, name=nodeid_name)
@@ -169,19 +149,6 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.add_marker(self.MARKER)
 
-    def collect(self):
-        """
-        Partially work around https://github.com/pytest-dev/pytest/issues/8016
-        for pytest < 6.0 with --looponfail.
-        """
-        yield self
-
-    @classmethod
-    def from_parent(cls, *args, **kwargs):
-        """Override from_parent for compatibility."""
-        # pytest.Item.from_parent did not exist before pytest 5.4.
-        return getattr(super(), "from_parent", cls)(*args, **kwargs)
-
     def repr_failure(self, excinfo):
         """
         Unwrap mypy errors so we get a clean error message without the
@@ -198,7 +165,7 @@ class MypyFileItem(MypyItem):
     def runtest(self):
         """Raise an exception if mypy found errors for this item."""
         results = MypyResults.from_session(self.session)
-        abspath = os.path.abspath(str(self.fspath))
+        abspath = str(self.path.absolute())
         errors = results.abspath_errors.get(abspath)
         if errors:
             if not all(
@@ -211,9 +178,9 @@ def runtest(self):
     def reportinfo(self):
         """Produce a heading for the test report."""
         return (
-            self.fspath,
+            self.path,
             None,
-            self.config.invocation_dir.bestrelpath(self.fspath),
+            str(self.path.relative_to(self.config.invocation_params.dir)),
         )
 
 
@@ -258,16 +225,15 @@ def from_mypy(
     ) -> "MypyResults":
         """Generate results from mypy."""
 
-        # This is covered by test_mypy_results_from_mypy_with_opts;
-        # however, coverage is not recognized on py38-pytest4.6:
-        if opts is None:  # pragma: no cover
+        if opts is None:
             opts = mypy_argv[:]
         abspath_errors = {
             str(path.absolute()): [] for path in paths
         }  # type: MypyResults._abspath_errors_type
 
+        cwd = Path.cwd()
         stdout, stderr, status = mypy.api.run(
-            opts + [os.path.relpath(key) for key in abspath_errors.keys()]
+            opts + [str(Path(key).relative_to(cwd)) for key in abspath_errors.keys()]
         )
 
         unmatched_lines = []
@@ -275,7 +241,7 @@ def from_mypy(
             if not line:
                 continue
             path, _, error = line.partition(":")
-            abspath = os.path.abspath(path)
+            abspath = str(Path(path).absolute())
             try:
                 abspath_errors[abspath].append(error)
             except KeyError:
@@ -305,7 +271,7 @@ def from_session(cls, session) -> "MypyResults":
             except FileNotFoundError:
                 results = cls.from_mypy(
                     [
-                        Path(item.fspath)
+                        item.path
                         for item in session.items
                         if isinstance(item, MypyFileItem)
                     ],
@@ -344,4 +310,4 @@ def pytest_terminal_summary(terminalreporter, config):
             terminalreporter.write_line(results.unmatched_stdout, **color)
         if results.stderr:
             terminalreporter.write_line(results.stderr, yellow=True)
-    os.remove(config._mypy_results_path)
+    Path(config._mypy_results_path).unlink()
diff --git a/tests/test_pytest_mypy.py b/tests/test_pytest_mypy.py
index e5b9670..1192600 100644
--- a/tests/test_pytest_mypy.py
+++ b/tests/test_pytest_mypy.py
@@ -53,12 +53,13 @@ def pyfunc(x: int) -> int:
     )
     result = testdir.runpytest_subprocess(*xdist_args)
     result.assert_outcomes()
+    assert result.ret == pytest.ExitCode.NO_TESTS_COLLECTED
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
     mypy_file_checks = pyfile_count
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     result.assert_outcomes(passed=mypy_checks)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 def test_mypy_pyi(testdir, xdist_args):
@@ -89,7 +90,7 @@ def pyfunc(x: int) -> int: ...
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     result.assert_outcomes(passed=mypy_checks)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 def test_mypy_error(testdir, xdist_args):
@@ -103,14 +104,15 @@ def pyfunc(x: int) -> str:
     result = testdir.runpytest_subprocess(*xdist_args)
     result.assert_outcomes()
     assert "_mypy_results_path" not in result.stderr.str()
+    assert result.ret == pytest.ExitCode.NO_TESTS_COLLECTED
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
     mypy_file_checks = 1
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     result.assert_outcomes(failed=mypy_checks)
     result.stdout.fnmatch_lines(["2: error: Incompatible return value*"])
-    assert result.ret != 0
     assert "_mypy_results_path" not in result.stderr.str()
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
 
 
 def test_mypy_annotation_unchecked(testdir, xdist_args, tmp_path, monkeypatch):
@@ -131,7 +133,7 @@ def pyfunc(x):
     outcomes = {"passed": mypy_checks}
     result.assert_outcomes(**outcomes)
     result.stdout.fnmatch_lines(["*MypyWarning*"])
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 def test_mypy_ignore_missings_imports(testdir, xdist_args):
@@ -162,10 +164,10 @@ def test_mypy_ignore_missings_imports(testdir, xdist_args):
             ),
         ],
     )
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
     result = testdir.runpytest_subprocess("--mypy-ignore-missing-imports", *xdist_args)
     result.assert_outcomes(passed=mypy_checks)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 def test_mypy_config_file(testdir, xdist_args):
@@ -181,7 +183,7 @@ def pyfunc(x):
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     result.assert_outcomes(passed=mypy_checks)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
     mypy_config_file = testdir.makeini(
         """
             [mypy]
@@ -210,10 +212,10 @@ def test_fails():
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     result.assert_outcomes(failed=test_count, passed=mypy_checks)
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
     result = testdir.runpytest_subprocess("--mypy", "-m", "mypy", *xdist_args)
     result.assert_outcomes(passed=mypy_checks)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 def test_non_mypy_error(testdir, xdist_args):
@@ -235,6 +237,7 @@ def runtest(self):
     )
     result = testdir.runpytest_subprocess(*xdist_args)
     result.assert_outcomes()
+    assert result.ret == pytest.ExitCode.NO_TESTS_COLLECTED
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
     mypy_file_checks = 1  # conftest.py
     mypy_status_check = 1
@@ -243,7 +246,7 @@ def runtest(self):
         passed=mypy_status_check,  # conftest.py has no type errors.
     )
     result.stdout.fnmatch_lines(["*" + message])
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
 
 
 def test_mypy_stderr(testdir, xdist_args):
@@ -294,7 +297,7 @@ def pytest_configure(config):
         """,
     )
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 def test_api_nodeid_name(testdir, xdist_args):
@@ -311,7 +314,7 @@ def pytest_configure(config):
     )
     result = testdir.runpytest_subprocess("--mypy", "--verbose", *xdist_args)
     result.stdout.fnmatch_lines(["*conftest.py::" + nodeid_name + "*"])
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
 
 
 @pytest.mark.xfail(
@@ -352,7 +355,7 @@ def pyfunc(x: int) -> str:
     mypy_file_checks = 1
     mypy_status_check = 1
     result.assert_outcomes(passed=mypy_file_checks, failed=mypy_status_check)
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
 
 
 def test_api_error_formatter(testdir, xdist_args):
@@ -381,7 +384,7 @@ def pytest_configure(config):
     )
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
     result.stdout.fnmatch_lines(["*/bad.py:2: error: Incompatible return value*"])
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
 
 
 def test_pyproject_toml(testdir, xdist_args):
@@ -401,7 +404,7 @@ def pyfunc(x):
     )
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
     result.stdout.fnmatch_lines(["1: error: Function is missing a type annotation*"])
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
 
 
 def test_setup_cfg(testdir, xdist_args):
@@ -421,7 +424,7 @@ def pyfunc(x):
     )
     result = testdir.runpytest_subprocess("--mypy", *xdist_args)
     result.stdout.fnmatch_lines(["1: error: Function is missing a type annotation*"])
-    assert result.ret != 0
+    assert result.ret == pytest.ExitCode.TESTS_FAILED
 
 
 @pytest.mark.parametrize("module_name", ["__init__", "test_demo"])
@@ -537,30 +540,6 @@ def _break():
     child.kill(signal.SIGTERM)
 
 
-def test_mypy_item_collect(testdir, xdist_args):
-    """Ensure coverage for a 3.10<=pytest<6.0 workaround."""
-    testdir.makepyfile(
-        """
-        def test_mypy_item_collect(request):
-            plugin = request.config.pluginmanager.getplugin("mypy")
-            mypy_items = [
-                item
-                for item in request.session.items
-                if isinstance(item, plugin.MypyItem)
-            ]
-            assert mypy_items
-            for mypy_item in mypy_items:
-                assert all(item is mypy_item for item in mypy_item.collect())
-        """,
-    )
-    result = testdir.runpytest_subprocess("--mypy", *xdist_args)
-    test_count = 1
-    mypy_file_checks = 1
-    mypy_status_check = 1
-    result.assert_outcomes(passed=test_count + mypy_file_checks + mypy_status_check)
-    assert result.ret == 0
-
-
 def test_mypy_results_from_mypy_with_opts():
     """MypyResults.from_mypy respects passed options."""
     mypy_results = pytest_mypy.MypyResults.from_mypy([], opts=["--version"])
@@ -610,5 +589,5 @@ def pytest_terminal_summary(config):
     mypy_status_check = 1
     mypy_checks = mypy_file_checks + mypy_status_check
     result.assert_outcomes(passed=mypy_checks)
-    assert result.ret == 0
+    assert result.ret == pytest.ExitCode.OK
     assert f"= {pytest_mypy.terminal_summary_title} =" not in str(result.stdout)
diff --git a/tox.ini b/tox.ini
index f8ebf12..0a6adcc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,33 +3,27 @@
 minversion = 4.4
 isolated_build = true
 envlist =
-    py37-pytest{4.6, 5.0, 5.x, 6.0, 6.x, 7.0, 7.x}-mypy{1.0, 1.x}
-    py38-pytest{4.6, 5.0, 5.x, 6.0, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    py39-pytest{4.6, 5.0, 5.x, 6.0, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    py310-pytest{6.2, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    py311-pytest{6.2, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    py312-pytest{6.2, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    py37-pytest{7.0, 7.x}-mypy{1.0, 1.x}
+    py38-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    py39-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    py310-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    py311-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    py312-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
     publish
     static
 
 [gh-actions]
 python =
-    3.7: py37-pytest{4.6, 5.0, 5.x, 6.0, 6.x, 7.0, 7.x}-mypy{1.0, 1.x}
-    3.8: py38-pytest{4.6, 5.0, 5.x, 6.0, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}, publish, static
-    3.9: py39-pytest{4.6, 5.0, 5.x, 6.0, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    3.10: py310-pytest{6.2, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    3.11: py311-pytest{6.2, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
-    3.12: py312-pytest{6.2, 6.x, 7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    3.7: py37-pytest{7.0, 7.x}-mypy{1.0, 1.x}
+    3.8: py38-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}, publish, static
+    3.9: py39-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    3.10: py310-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    3.11: py311-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
+    3.12: py312-pytest{7.0, 7.x, 8.0, 8.x}-mypy{1.0, 1.x}
 
 [testenv]
 constrain_package_deps = true
 deps =
-    pytest4.6: pytest ~= 4.6.0
-    pytest5.0: pytest ~= 5.0.0
-    pytest5.x: pytest ~= 5.0
-    pytest6.0: pytest ~= 6.0.0
-    pytest6.2: pytest ~= 6.2.0
-    pytest6.x: pytest ~= 6.0
     pytest7.0: pytest ~= 7.0.0
     pytest7.x: pytest ~= 7.0
     pytest8.0: pytest ~= 8.0.0