diff --git a/CHANGES.rst b/CHANGES.rst
index b64089e..9d0d50a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,9 +2,11 @@
  Changes
 =========
 
-6.2 (unreleased)
+7.0 (unreleased)
 ================
 
+- Replace ``pkg_resources`` namespace with PEP 420 native namespace.
+
 - Add preliminary support for Python 3.14.
 
 - Drop support for Python 3.8.
diff --git a/setup.py b/setup.py
index 0f3c49c..4862ead 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
 from setuptools.command.build_ext import build_ext
 
 
-version = '6.2.dev0'
+version = '7.0.dev0'
 
 
 class optional_build_ext(build_ext):
@@ -117,9 +117,10 @@ def read(*rnames):
           'Operating System :: OS Independent',
       ],
       keywords='proxy generic transparent',
-      packages=['zope', 'zope.proxy'],
+      # we need the following two parameters because we compile C code,
+      # otherwise only the shared library is installed:
       package_dir={'': 'src'},
-      namespace_packages=['zope'],
+      packages=['zope.proxy'],
       cmdclass={
           'build_ext': optional_build_ext,
       },
@@ -136,7 +137,7 @@ def read(*rnames):
           'test': [
               # We have a circular dependency with zope.security for testing
               'zope.security >= 7.3',
-              'zope.testrunner',
+              'zope.testrunner >= 6.4',
           ],
           'docs': [
               'Sphinx',
diff --git a/src/zope/__init__.py b/src/zope/__init__.py
deleted file mode 100644
index de40ea7..0000000
--- a/src/zope/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__import__('pkg_resources').declare_namespace(__name__)