fix pyglet version

README.rst

@@ -186,6 +186,10 @@ We are using `pytest <http://doc.pytest.org>`_ for tests. You can run them via:
 
 What's new
 ==========
+- 2019-06-21 (v0.13.2)
+    + Bug fix for ALE 0.6 difficulty modes
+    + Lock pyglet dependency
+
 - 2019-06-21 (v0.13.0)
     + Upgrade to ALE 0.6 (atari-py 0.2.0) (thanks @JesseFarebro!)
 

setup.py

@@ -31,7 +31,7 @@ setup(name='gym',
                 if package.startswith('gym')],
       zip_safe=False,
       install_requires=[
-          'scipy', 'numpy>=1.10.4', 'six', 'pyglet>=1.2.0', 'cloudpickle~=1.2.0',
+          'scipy', 'numpy>=1.10.4', 'six', 'pyglet~=1.3.2', 'cloudpickle~=1.2.0',
           'enum34~=1.1.6;python_version<"3.4"'
       ],
       extras_require=extras,