diff --git a/packages/google-cloud-scheduler/README.rst b/packages/google-cloud-scheduler/README.rst
index 85971c49c353..27e606b79d66 100644
--- a/packages/google-cloud-scheduler/README.rst
+++ b/packages/google-cloud-scheduler/README.rst
@@ -40,6 +40,15 @@ dependencies.
 .. _`virtualenv`: https://virtualenv.pypa.io/en/latest/
 
 
+Supported Python Versions
+^^^^^^^^^^^^^^^^^^^^^^^^^
+Python >= 3.4
+
+Deprecated Python Versions
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+Python == 2.7. Python 2.7 support will be removed on January 1, 2020.
+
+
 Mac/Linux
 ^^^^^^^^^
 
diff --git a/packages/google-cloud-scheduler/setup.py b/packages/google-cloud-scheduler/setup.py
index 047a5af67f2a..3dc1ebba43dc 100644
--- a/packages/google-cloud-scheduler/setup.py
+++ b/packages/google-cloud-scheduler/setup.py
@@ -79,6 +79,7 @@
     packages=packages,
     namespace_packages=namespaces,
     install_requires=dependencies,
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
     include_package_data=True,
     zip_safe=False,
 )