diff --git a/Strafunski-StrategyLib.cabal b/Strafunski-StrategyLib.cabal
--- a/Strafunski-StrategyLib.cabal
+++ b/Strafunski-StrategyLib.cabal
@@ -1,5 +1,5 @@
 name:                Strafunski-StrategyLib
-version:             5.0.0.3
+version:             5.0.0.4
 synopsis:            Library for strategic programming
 description:         This is a version of the StrategyLib library originally shipped with Strafunski, Cabalized and updated to newer versions of GHC. A description of much of StrategyLib can be found in the paper "Design Patterns for Functional Strategic Programming."
 license:             BSD3
@@ -52,8 +52,8 @@
 --   other-modules:       
 
   build-depends:
-        base > 4.4 && < 4.6.1,
-        mtl > 2.1 && < 2.2,
+        base > 4.4 && < 4.8,
+        mtl > 2.2,
         syb > 0.3 && < 4.1,
         directory > 1.1 && < 1.2.1