diff --git a/README.rst b/README.rst
index e97dee7..4c9c2e9 100644
--- a/README.rst
+++ b/README.rst
@@ -127,6 +127,16 @@ If these links are no longer functional, some are archived in the `Internet Arch
 Changelog
 ---------
 
+Version 1.3.0.post1
+^^^^^^^^^^^^^^^^^^^
+
+* Fixed an incorrect ``options.packages`` in ``setup.cfg``, which made the library unusable except when installing from source using ``--editable``.
+
+Version 1.2.0.post1
+^^^^^^^^^^^^^^^^^^^
+
+* Fixed an incorrect ``options.packages`` in ``setup.cfg``, which made the library unusable except when installing from source using ``--editable``.
+
 Version 1.3.0
 ^^^^^^^^^^^^^
 
diff --git a/rsrcfork/__init__.py b/rsrcfork/__init__.py
index a0abd48..b41dd03 100644
--- a/rsrcfork/__init__.py
+++ b/rsrcfork/__init__.py
@@ -1,6 +1,6 @@
 """A pure Python, cross-platform library/tool for reading Macintosh resource data, as stored in resource forks and ``.rsrc`` files."""
 
-__version__ = "1.3.0"
+__version__ = "1.3.0.post1"
 
 __all__ = [
 	"Resource",
diff --git a/setup.cfg b/setup.cfg
index f1a3e54..47ffee6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -36,8 +36,12 @@ keywords =
 setup_requires =
 	setuptools>=39.2.0
 python_requires = >=3.6
-packages =
+packages = find:
+
+[options.packages.find]
+include =
 	rsrcfork
+	rsrcfork.*
 
 [options.entry_points]
 console_scripts =