diff --git a/emacs/.emacs.d/Cask b/emacs/.emacs.d/Cask
index 25ba5d7..5857921 100644
--- a/emacs/.emacs.d/Cask
+++ b/emacs/.emacs.d/Cask
@@ -82,6 +82,7 @@
 (depends-on "request")
 (depends-on "rinari")
 (depends-on "rust-mode")
+(depends-on "slim-mode")
 (depends-on "smex")
 (depends-on "svg-mode-line-themes")
 (depends-on "tagedit")