diff --git a/update.py b/update.py
index ed29791..72a37c5 100755
--- a/update.py
+++ b/update.py
@@ -23,7 +23,6 @@
 # This is different from that blob's Git hash.
 
 from sys import argv
-import os
 from threading import Thread, Lock, Event, Condition
 
 import lib