diff --git a/README.md b/README.md
index ea14451..9616462 100644
--- a/README.md
+++ b/README.md
@@ -15,12 +15,14 @@ LTC: Lajqnm28UipLbzJqvyy4tRQFf39xQy6B48
 
 ## Install ##
 
-It's super easy - just use pip to get the latest version.
+It's super easy - just use pip to get the latest version (Python 3 is **required**):
 
 ```
 pip install nanoleaf --upgrade
 ```
 
+If you get an error similar to `Command '['git', 'tag', '-l', '--points-at', 'HEAD']' returned non-zero exit status 128`, this is because you attempted an installation using pip from Python 2.
+
 ## Setup ##
 
 There are two pieces of information you'll need to control your Aurora: The IP address and an auth token.