diff --git a/Brewfile b/Brewfile
index c622383..da4ef57 100644
--- a/Brewfile
+++ b/Brewfile
@@ -129,6 +129,7 @@ cask 'fork'
 cask 'hex-fiend'
 cask 'insomnia'
 cask 'kaleidoscope'
+cask 'keycastr'
 cask 'licecap'
 cask 'paw'
 cask 'postico'