diff --git a/keys.cabal b/keys.cabal
--- a/keys.cabal
+++ b/keys.cabal
@@ -1,6 +1,6 @@
 name:          keys
 category:      Data Structures, Containers
-version:       0.1.0
+version:       0.1.0.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -21,7 +21,7 @@
   build-depends: 
     array >= 0.3.0.2 && < 0.4,
     base >= 4 && < 4.4,
-    comonad-transformers >= 1.5.0.3 && < 1.6,
+    comonad-transformers >= 1.5.1 && < 1.6,
     containers >= 0.4 && < 0.5,
     semigroups >= 0.3.4 && < 0.4,
     semigroupoids >= 1.1.1 && < 1.2,