diff --git a/.brewfiles/20_development_tools.Brewfile b/.brewfiles/20_development_tools.Brewfile
index 5b31fa7..37dfa34 100644
--- a/.brewfiles/20_development_tools.Brewfile
+++ b/.brewfiles/20_development_tools.Brewfile
@@ -29,6 +29,7 @@ brew "shellcheck"
 cask "sqlpro-for-postgres"
 brew "rbenv"
 brew "rbenv-default-gems"
+brew "rbspy"
 brew "ripgrep"
 brew "rsync"
 brew "sheldon"