diff --git a/Cask b/Cask
index dcfdc80a..8ffc9294 100644
--- a/Cask
+++ b/Cask
@@ -2,3 +2,10 @@
 (source melpa)
 
 (package-file "realgud.el")
+
+(depends-on "load-relative")
+(depends-on "loc-changes")
+(depends-on "list-utils")
+
+(development
+  (depends-on "test-simple"))