diff --git a/README.rst b/README.rst
index d9b31f64..3825b5e6 100644
--- a/README.rst
+++ b/README.rst
@@ -9,6 +9,14 @@ See the `docs`_ for examples and usage.
 
 .. _docs: https://googlecloudplatform.github.io/google-resumable-media-python/latest/
 
+Supported Python Versions
+-------------------------
+Python >= 3.4
+
+Deprecated Python Versions
+--------------------------
+Python == 2.7. Python 2.7 support will be removed on January 1, 2020.
+
 License
 -------
 
diff --git a/setup.py b/setup.py
index db947e4e..49488428 100644
--- a/setup.py
+++ b/setup.py
@@ -49,6 +49,7 @@
     zip_safe=False,
     install_requires=REQUIREMENTS,
     extras_require=EXTRAS_REQUIRE,
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
     classifiers=[
         'Development Status :: 3 - Alpha',
         'Intended Audience :: Developers',
@@ -60,6 +61,7 @@
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
         'Topic :: Internet',
     ],
 )