diff --git a/async-io-either.cabal b/async-io-either.cabal
--- a/async-io-either.cabal
+++ b/async-io-either.cabal
@@ -1,5 +1,5 @@
 name:                async-io-either
-version:             0.1.0.1
+version:             0.1.0.2
 synopsis:            Could be useful
 description:         A way of running any IO type and capturing any exception, maybe, I think...
 homepage:            https://github.com/mankyKitty/async-io-either#readme
@@ -18,6 +18,7 @@
   exposed-modules:     Control.Concurrent.Async.Either
   build-depends:       base >= 4.7 && < 5
                      , async > 0.2
+                     , transformers
   default-language:    Haskell2010
 
 source-repository head
