diff --git a/noxfile.py b/noxfile.py
index da20ed0a..b260ffa8 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -27,9 +27,6 @@ def test(session):
     """\
     Run test suite.
     """
-    import platform
-    if platform.python_version()[:4] == '3.12':
-        session.install('setuptools')  #TODO: Remove this, see issue <https://github.com/heuer/segno/issues/129>
     session.install('-Ur', 'tests/requirements.txt')
     session.install('.')
     session.run('py.test')
diff --git a/pyproject.toml b/pyproject.toml
index 61082b20..6f609c2f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,9 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: Utilities",
 ]
+dependencies = [
+    "importlib-metadata>=3.6.0; python_version < '3.8'",
+]
 
 [project.urls]
 "Homepage" = "https://github.com/heuer/segno/"
diff --git a/tests/requirements.txt b/tests/requirements.txt
index d8080169..543a54fc 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -3,3 +3,5 @@ pytest
 pytest-cov
 pypng~=0.0.20
 pyzbar~=0.1.8
+qrcode-artistic
+Pillow
diff --git a/tests/test_plugin.py b/tests/test_plugin.py
index ff24cf89..30465481 100644
--- a/tests/test_plugin.py
+++ b/tests/test_plugin.py
@@ -8,9 +8,7 @@
 """\
 Tests plugin loading.
 """
-from __future__ import absolute_import, unicode_literals
 import os
-import pkg_resources
 import pytest
 import segno
 
@@ -21,22 +19,9 @@ def test_noplugin():
         qr.to_unknown_plugin()
 
 
-def an_example_plugin(qrcode):
-    """\
-    This is a Segno converter plugin used by the next test case.
-    """
-    assert qrcode
-    return 'works'
-
-
 def test_plugin():
-    distribution = pkg_resources.Distribution(os.path.dirname(__file__))
-    entry_point = pkg_resources.EntryPoint.parse('test = test_plugin:an_example_plugin', dist=distribution)
-    distribution._ep_map = {'segno.plugin.converter': {'test': entry_point}}
-    pkg_resources.working_set.add(distribution)
-
     qr = segno.make('The Beatles')
-    assert 'works' == qr.to_test()
+    assert qr.to_pil() is not None
 
 
 if __name__ == '__main__':