diff --git a/packages/google-cloud-websecurityscanner/README.rst b/packages/google-cloud-websecurityscanner/README.rst
index f51f4cf0cb54..a8e1e692b048 100644
--- a/packages/google-cloud-websecurityscanner/README.rst
+++ b/packages/google-cloud-websecurityscanner/README.rst
@@ -47,6 +47,15 @@ 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-websecurityscanner/setup.py b/packages/google-cloud-websecurityscanner/setup.py
index b54c20cd62e3..ca5799ee6667 100644
--- a/packages/google-cloud-websecurityscanner/setup.py
+++ b/packages/google-cloud-websecurityscanner/setup.py
@@ -78,12 +78,14 @@
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
     ],
     platforms='Posix; MacOS X; Windows',
     packages=packages,
     namespace_packages=namespaces,
     install_requires=dependencies,
     extras_require=extras,
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
     include_package_data=True,
     zip_safe=False,
 )