diff --git a/doc/source/serve/index.rst b/doc/source/serve/index.rst
index 2a6508a98..6d4503bb7 100644
--- a/doc/source/serve/index.rst
+++ b/doc/source/serve/index.rst
@@ -37,7 +37,7 @@ Since Serve is built on Ray, it also allows you to scale to many machines, in yo
 Installation
 ============
 
-Ray Serve supports Python versions 3.5 and higher. To install Ray Serve:
+Ray Serve supports Python versions 3.6 and higher. To install Ray Serve:
 
 .. code-block:: bash
 
diff --git a/python/ray/serve/examples/doc/quickstart_class.py b/python/ray/serve/examples/doc/quickstart_class.py
index 7a8c3d7ff..6c6ba2808 100644
--- a/python/ray/serve/examples/doc/quickstart_class.py
+++ b/python/ray/serve/examples/doc/quickstart_class.py
@@ -11,11 +11,12 @@ class Counter:
         self.count = 0
 
     def __call__(self, flask_request):
+        self.count += 1
         return {"current_counter": self.count}
 
 
 client.create_backend("counter", Counter)
 client.create_endpoint("counter", backend="counter", route="/counter")
 
-requests.get("http://127.0.0.1:8000/counter").json()
-# > {"current_counter": 0}
+print(requests.get("http://127.0.0.1:8000/counter").json())
+# > {"current_counter": 1}
diff --git a/python/ray/serve/examples/doc/quickstart_function.py b/python/ray/serve/examples/doc/quickstart_function.py
index a0e26d3f2..9e7c9bb1f 100644
--- a/python/ray/serve/examples/doc/quickstart_function.py
+++ b/python/ray/serve/examples/doc/quickstart_function.py
@@ -13,5 +13,5 @@ def echo(flask_request):
 client.create_backend("hello", echo)
 client.create_endpoint("hello", backend="hello", route="/hello")
 
-requests.get("http://127.0.0.1:8000/hello").text
-# > "hello serve!"
+print(requests.get("http://127.0.0.1:8000/hello").text)
+# > hello serve!