diff --git a/src/nanoemoji/reorder_glyphs.py b/src/nanoemoji/reorder_glyphs.py
index 006a4d0..dabc0ad 100644
--- a/src/nanoemoji/reorder_glyphs.py
+++ b/src/nanoemoji/reorder_glyphs.py
@@ -14,7 +14,7 @@
 
 """Helps with glyph reordering.
 
-See https://docs.google.com/document/d/14b8bivUBdWSkeGLIVcqVLBVWNbXXFawguq52D2olvEA/edit for context."""
+See https://docs.google.com/document/d/1h9O-C_ndods87uY0QeIIcgAMiX2gDTpvO_IhMJsKAqs for context."""
 
 
 from fontTools import ttLib