diff --git a/README.rst b/README.rst
index 5158a5f..dfb451d 100644
--- a/README.rst
+++ b/README.rst
@@ -13,9 +13,13 @@ Introduction
     :target: https://travis-ci.com/adafruit/Adafruit_CircuitPython_AWS_IOT
     :alt: Build Status
 
-Amazon AWS IoT Client for CircuitPython. Uses the AWS MQTT Client.
+Amazon AWS IoT MQTT Client for CircuitPython.
 
-.. todo:: Add note about nina-fw 1.4.0 here
+
+**Note**: This library requires version **>=1.4.0** of the `Adafruit fork of the Arduino NINA-W102 firmware <https://github.com/adafruit/nina-fw>`_
+ (release version 1.4.0 or above) installed on your ESP32 Airlift/WiFi Co-Processor.
+ 
+If you do not know how to do this, `visit the Adafruit Learning System guide for this topic... <https://learn.adafruit.com/upgrading-esp32-firmware>`_
 
 
 Dependencies
diff --git a/adafruit_aws_iot.py b/adafruit_aws_iot.py
index ae0de65..f8ffa62 100644
--- a/adafruit_aws_iot.py
+++ b/adafruit_aws_iot.py
@@ -133,8 +133,7 @@ class MQTT_CLIENT:
 
     def connect(self, clean_session=True):
         """Connects to Amazon AWS IoT MQTT Broker with Client ID.
-        :param bool clean_session: Establishes a persistent/clean session with
-                                    AWS IoT's MQTT broker.
+        :param bool clean_session: Establishes a clean session with AWS broker.
 
         """
         try:
diff --git a/docs/conf.py b/docs/conf.py
index 8a797ff..3413d63 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -20,7 +20,7 @@ extensions = [
 # Uncomment the below if you use native CircuitPython modules such as
 # digitalio, micropython and busio. List the modules you use. Without it, the
 # autodoc module docs will fail to generate with a warning.
-# autodoc_mock_imports = ["digitalio", "busio"]
+autodoc_mock_imports = ["adafruit_minimqtt"]
 
 
 intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}