diff --git a/README.rst b/README.rst
index 571c21e..b4aa44b 100644
--- a/README.rst
+++ b/README.rst
@@ -6,4 +6,11 @@ A collection of classes to assist with accessing and manipulating Google service
 
 - Calendar
 - Drive
-- Sheets
\ No newline at end of file
+- Sheets
+
+NOTE: If you are running a version of Python < 3.7, a dependency deep in google's stack requires protobuf, which the current version of requires >3.7 python.
+
+Instead, manually install the 3.19 version branch of protobuf before attempting to install this package:
+```pip3 install protobuf==3.19.6```
+
+Then this package will install cleanly.