diff --git a/packunused.cabal b/packunused.cabal
--- a/packunused.cabal
+++ b/packunused.cabal
@@ -1,5 +1,5 @@
 name:                packunused
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Tool for detecting redundant Cabal package dependencies
 homepage:            https://github.com/hvr/packunused
 license:             BSD3
@@ -8,8 +8,8 @@
 maintainer:          Herbert Valerio Riedel <hvr@gnu.org>
 category:            Distribution
 build-type:          Simple
-cabal-version:       >=1.14
-tested-with:         GHC >=7.4.1
+cabal-version:       >=1.10
+tested-with:         GHC ==7.6.3, GHC ==7.6.2, GHC ==7.6.1, GHC ==7.4.2, GHC ==7.4.1
 description:
   This simple CLI tool allows to find out which of the packages listed as
   @build-depends@ in a Cabal package description file are redundant.
@@ -42,32 +42,32 @@
   .
   > detected package components
   > ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-  > 
+  >
   >  - executable(s): packunused
-  > 
+  >
   > (component names suffixed with '*' are not configured to be built)
-  > 
+  >
   > executable(packunused)
   > ~~~~~~~~~~~~~~~~~~~~~~
-  > 
+  >
   > The following package depencencies seem redundant:
-  > 
+  >
   >  - criterion-0.6.2.0-9dd4d764629a47662168743b2dfda9bc
-  > 
+  >
 
 source-repository head
     type:     git
     location: https://github.com/hvr/packunused.git
 
 executable packunused
-  main-is:             packunused.hs 
+  main-is:             packunused.hs
   default-language:    Haskell2010
   other-extensions:    CPP, DeriveDataTypeable, RecordWildCards
   ghc-options:         -Wall -fwarn-tabs -fno-warn-unused-do-bind
-  build-depends:       
+  build-depends:
     base              >=4.5  && <4.7,
-    Cabal             >=1.14 && <1.18,
+    Cabal             >=1.14 && <1.17,
     cmdargs           ==0.10.*,
     directory         >=1.1  && <1.3,
     filepath          ==1.3.*,
-    haskell-src-exts  ==1.13.*
+    haskell-src-exts  >=1.13 && <1.15
diff --git a/packunused.hs b/packunused.hs
--- a/packunused.hs
+++ b/packunused.hs
@@ -233,4 +233,8 @@
     extractSpecs (Just (False, impspecs)) = map H.prettyPrint impspecs
     extractSpecs _ = error "unexpected import specs"
 
-    exts = map id [ H.MagicHash, H.PackageImports, H.CPP, H.TypeOperators, H.TypeFamilies {- , H.ExplicitNamespaces -} ]
+#if MIN_VERSION_haskell_src_exts(1,14,0)
+    exts = map H.EnableExtension [ H.MagicHash, H.PackageImports, H.CPP, H.TypeOperators, H.TypeFamilies ]
+#else
+    exts = [ H.MagicHash, H.PackageImports, H.CPP, H.TypeOperators, H.TypeFamilies {- , H.ExplicitNamespaces -} ]
+#endif