diff --git a/setup.py b/setup.py
index bc9620192..59424d8d9 100644
--- a/setup.py
+++ b/setup.py
@@ -16,10 +16,10 @@ setup(name='gym',
                 if package.startswith('gym')],
       zip_safe=False,
       install_requires=[
-          'numpy>=1.10.4', 'requests>=2.0', 'six'
+          'numpy>=1.10.4', 'requests>=2.0', 'six', 'pyglet',
       ],
       extras_require={
-          'all': ['atari_py>=0.0.17', 'Pillow', 'pyglet', 'PyOpenGL',
+          'all': ['atari_py>=0.0.17', 'Pillow', 'PyOpenGL',
                   'pachi-py>=0.0.19',
                   'box2d-py',
                   'mujoco_py>=0.4.3', 'imageio'],
@@ -29,7 +29,7 @@ setup(name='gym',
           'atari': ['atari_py>=0.0.17', 'Pillow', 'pyglet', 'PyOpenGL'],
           'board_game' : ['pachi-py>=0.0.19'],
           'box2d': ['box2d-py'],
-          'classic_control': ['pyglet', 'PyOpenGL'],
+          'classic_control': ['PyOpenGL'],
           'mujoco': ['mujoco_py>=0.4.3', 'imageio'],
       },
       package_data={'gym': ['envs/mujoco/assets/*.xml', 'envs/classic_control/assets/*.png']},