diff --git a/examples/theme.py b/examples/theme.py
index 3ee4a64..e6050df 100644
--- a/examples/theme.py
+++ b/examples/theme.py
@@ -15,7 +15,7 @@
 # "setting_name": (foreground_color, background_color),
 
 # See pudb/theme.py
-# (https://github.com/inducer/pudb/blob/master/pudb/theme.py) to see what keys
+# (https://github.com/inducer/pudb/blob/main/pudb/theme.py) to see what keys
 # there are.
 
 # Note, be sure to test your theme in both curses and raw mode (see the bottom