diff --git a/codespell_lib/data/dictionary_en-GB_to_en-US.txt b/codespell_lib/data/dictionary_en-GB_to_en-US.txt
index ba32712..9bb8613 100644
--- a/codespell_lib/data/dictionary_en-GB_to_en-US.txt
+++ b/codespell_lib/data/dictionary_en-GB_to_en-US.txt
@@ -33,6 +33,10 @@
 customised->customized
 customising->customizing
 defence->defense
+demonise->demonize
+demonised->demonized
+demonises->demonizes
+demonising->demonizing
 dialogue->dialog
 digitise->digitize
 digitising->digitizing