diff --git a/hyrule/__init__.py b/hyrule/__init__.py
index 0f350738..667e0a69 100644
--- a/hyrule/__init__.py
+++ b/hyrule/__init__.py
@@ -1,7 +1,7 @@
 # We use an `__init__.py` instead of `__init__.hy` so that importing
 # from Python works even if `hy` hasn't been imported yet.
 
-__version__ = 'unreleased'
+__version__ = '0.5.0'
 
 import hy
 hy.macros.require('hyrule.hy_init',
diff --git a/setup.py b/setup.py
index e4ea6a81..9d642f30 100644
--- a/setup.py
+++ b/setup.py
@@ -25,13 +25,13 @@ def run(self):
 # both setup_requires and install_requires
 # since we need to compile .hy files during setup
 requires = [
-    'hy'
+    'hy >= 0.28.0, < 0.29'
 ]
 
 
 setuptools.setup(
     name = 'hyrule',
-    version = None,
+    version = '0.5.0',
     setup_requires=['wheel'] + requires,
     install_requires=requires,
     packages = setuptools.find_packages(exclude = ["tests*"]),