diff --git a/Strafunski-ATermLib.cabal b/Strafunski-ATermLib.cabal
--- a/Strafunski-ATermLib.cabal
+++ b/Strafunski-ATermLib.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                Strafunski-ATermLib
-version:             1.6.0.2
+version:             1.6.0.3
 synopsis:            An abstract data type designed for the exchange of tree-like data structures
 description:         Library for dealing with ATerms (annotated terms) in Haskell. See <https://github.com/cwi-swat/aterms> for more information on ATerms.
 license:             BSD3
@@ -32,4 +32,4 @@
                        Data.ATerm.Lib,
                        Data.ATerm.ReadWrite
   -- other-modules:       
-  build-depends:       base ==4.5.*, containers ==0.4.*
+  build-depends:       base <=4.7, containers <=0.6