diff --git a/Brewfile b/Brewfile
index 6ffa46c..ae205ef 100644
--- a/Brewfile
+++ b/Brewfile
@@ -93,6 +93,7 @@ cask "iterm2"
 cask "java"
 cask "kawa"
 cask "karabiner-elements"
+cask "keycastr"
 cask "licecap"
 cask "maccy"
 cask "mos"