diff --git a/union-find-array.cabal b/union-find-array.cabal
--- a/union-find-array.cabal
+++ b/union-find-array.cabal
@@ -1,5 +1,5 @@
 name:          union-find-array
-version:       0.1
+version:       0.1.0.1
 stability:     experimental
 author:        Bertram Felgenhauer
 homepage:      http://cl-informatik.uibk.ac.at/software/haskell-rewriting/
@@ -32,8 +32,8 @@
         Control.Monad.Union.Class
         Control.Monad.Union
     build-depends:
-        array >= 0.3 && < 0.5,
-        mtl >= 1.1 && < 2.2,
+        array >= 0.3 && < 0.6,
+        mtl >= 1.1 && < 2.3,
         base >= 4 && < 5
     extensions:
         GeneralizedNewtypeDeriving