diff --git a/heftia-effects/heftia-effects.cabal b/heftia-effects/heftia-effects.cabal
index 6ee9d99..313756e 100644
--- a/heftia-effects/heftia-effects.cabal
+++ b/heftia-effects/heftia-effects.cabal
@@ -112,9 +112,12 @@ library
         Data.Effect.Except,
         Data.Effect.ShiftReset,
         Data.Effect.Coroutine,
+        Data.Effect.Input,
+        Data.Effect.Output,
         Data.Effect.Provider,
         Data.Effect.Provider.Implicit,
         Data.Effect.Resource,
+        Data.Effect.Unlift,
 
     -- Modules included in this executable, other than Main.
     -- other-modules: