Updated dependencies for cabal test suite

curry-frontend.cabal

@@ -134,5 +134,5 @@ Test-Suite test-frontend
   hs-source-dirs: test
   default-language:  Haskell2010
   test-module:    TestFrontend
-  build-depends:  base == 4.*, Cabal >= 1.10, curry-base == 0.4.1
+  build-depends:  base == 4.*, Cabal >= 1.20, curry-base == 0.4.1
     , curry-frontend == 0.4.1, filepath