diff --git a/Nomyx-Rules.cabal b/Nomyx-Rules.cabal
--- a/Nomyx-Rules.cabal
+++ b/Nomyx-Rules.cabal
@@ -1,6 +1,6 @@
 name: Nomyx-Rules
-version: 0.0.1
-cabal-version: >=1.2
+version: 0.0.2
+cabal-version: >=1.6
 build-type: Simple
 license: BSD3
 license-file: LICENSE
@@ -18,7 +18,7 @@
 extra-source-files: examples/Examples.hs tests/Test.hs, AUTHORS, README
  
 library
-    build-depends: base ==4, containers -any, ghc -any,
+    build-depends: base ==4.*, containers -any, ghc -any,
                    hint-server -any, hslogger -any, mtl -any, old-locale -any,
                    safe -any, stm -any, time -any, time-recurrence -any
     exposed-modules: Examples Language.Nomyx.Evaluation