diff --git a/.coveragerc b/.coveragerc
index db89e7a..835ac51 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,6 +1,6 @@
 [run]
 branch = True
-source = plugin
+source = pytest_remove_stale_bytecode
 
 [report]
 precision = 2
diff --git a/CHANGES.rst b/CHANGES.rst
index 75c246a..c4282a9 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -18,6 +18,14 @@ Features
 
 - Update tests to ``pytest >= 7.4``.
 
+Other changes
+-------------
+
+- Fix installed module name
+  (`#7 <https://github.com/minddistrict/pytest-remove-stale-bytecode/issues/7>`_)
+
+- Replace deprecated ``pkg_resources`` with ``importlib.metadata``.
+
 
 6.0 (2023-07-07)
 ================
diff --git a/plugin.py b/pytest_remove_stale_bytecode.py
similarity index 88%
rename from plugin.py
rename to pytest_remove_stale_bytecode.py
index 5c63b3c..1825625 100644
--- a/plugin.py
+++ b/pytest_remove_stale_bytecode.py
@@ -1,13 +1,12 @@
+import importlib.metadata
 import os
 import os.path
-import pkg_resources
 import sys
 
 
-__version__ = pkg_resources.get_distribution(
-    'pytest-remove-stale-bytecode').version
+__version__ = importlib.metadata.version('pytest-remove-stale-bytecode')
 python_version = '{0.major}{0.minor}'.format(sys.version_info)
-pytest_version = pkg_resources.get_distribution('pytest').version
+pytest_version = importlib.metadata.version('pytest')
 
 compiled_suffixes = '.pyc', '.pyo'
 
diff --git a/setup.py b/setup.py
index 3ca3138..73d043c 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,6 @@ def project_path(*names):
 
     install_requires=[
         'pytest',
-        'setuptools',
     ],
 
     extras_require={
@@ -27,7 +26,7 @@ def project_path(*names):
 
     entry_points={
         'pytest11': [
-            'removestalebytecode = plugin',
+            'removestalebytecode = pytest_remove_stale_bytecode',
         ],
     },
 
@@ -64,5 +63,5 @@ def project_path(*names):
     )),
 
     zip_safe=False,
-    py_modules=['plugin'],
+    py_modules=['pytest_remove_stale_bytecode'],
 )
diff --git a/test_plugin.py b/test_pytest_remove_stale_bytecode.py
similarity index 91%
rename from test_plugin.py
rename to test_pytest_remove_stale_bytecode.py
index f07ee4e..e66d406 100644
--- a/test_plugin.py
+++ b/test_pytest_remove_stale_bytecode.py
@@ -1,5 +1,5 @@
-from plugin import pytest_version
-from plugin import python_version
+from pytest_remove_stale_bytecode import pytest_version
+from pytest_remove_stale_bytecode import python_version
 from unittest import mock
 import pytest
 
@@ -8,8 +8,8 @@
 
 
 def test_version():
-    import plugin
-    assert plugin.__version__
+    import pytest_remove_stale_bytecode
+    assert pytest_remove_stale_bytecode.__version__
 
 
 @pytest.mark.parametrize("ext", ['.pyc', '.pyo'])
@@ -116,6 +116,7 @@ def test_plugin_removes_python3_PYTEST_bytecode_files(testdir, ext):
 
 def test_plugin_does_not_break_if_file_is_removed_externally(testdir):
     bar = testdir.makefile('.pyc', bar='')
-    with mock.patch('plugin.delete_file', side_effect=FileNotFoundError):
+    with mock.patch('pytest_remove_stale_bytecode.delete_file',
+                    side_effect=FileNotFoundError):
         testdir.runpytest("-v")
     assert bar.exists()
diff --git a/tox.ini b/tox.ini
index b1a8253..8ad20d3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,15 +11,14 @@ envlist=
 [testenv]
 deps = pytest
 commands =
-    {envbindir}/pytest {posargs:test_plugin.py} []
+    {envbindir}/pytest {posargs:test_pytest_remove_stale_bytecode.py} []
 
 [testenv:coverage]
 basepython = python3
 deps =
     {[testenv]deps}
     coverage
-    coverage-python-version
 commands =
-    coverage run {envbindir}/py.test {posargs:test_plugin.py} []
+    coverage run {envbindir}/py.test {posargs:test_pytest_remove_stale_bytecode.py} []
     coverage html
-    coverage report
+    coverage report -m