diff --git a/cabal-sort.cabal b/cabal-sort.cabal
--- a/cabal-sort.cabal
+++ b/cabal-sort.cabal
@@ -1,5 +1,5 @@
 Name:             cabal-sort
-Version:          0.0.5.1
+Version:          0.0.5.2
 License:          BSD3
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
@@ -35,7 +35,7 @@
   e.g. in order to adapt your packages to a new GHC version.
   In this case I found it useful to run
   .
-  > for dir in `find . -name "*.cabal" | fgrep -v _darcs | xargs cabal-sort --info=dir`; do (cd $dir; bash); done@.
+  > for dir in `find . -name "*.cabal" | fgrep -v _darcs | xargs cabal-sort --info=dir`; do (cd $dir; bash); done
   .
   This way you start a local shell for every package.
   Then you can easily access commands in the shell history
@@ -87,18 +87,18 @@
 Source-Repository this
   type:     darcs
   location: http://code.haskell.org/~thielema/cabal-sort/
-  tag:      0.0.5.1
+  tag:      0.0.5.2
 
 
 Executable cabal-sort
   Build-Depends:
-    Cabal >=1.6 && <1.17,
-    fgl >=5.4.2 && <5.5,
+    Cabal >=1.6 && <2,
+    fgl >=5.4.2 && <5.6,
     directory >=1 && <1.3,
-    filepath >=1.1 && <1.4,
+    filepath >=1.1 && <1.5,
     containers >=0.2 && <0.6,
     explicit-exception >=0.1.4 && <0.2,
-    transformers >=0.2 && <0.4,
+    transformers >=0.2 && <0.5,
     base >=2 && <5
 
   GHC-Options:      -Wall
@@ -107,12 +107,12 @@
 
 Executable ghc-pkg-dep
   Build-Depends:
-    Cabal >=1.6 && <1.17,
-    process >=1.0 && <1.2,
+    Cabal >=1.6 && <2,
+    process >=1.0 && <1.3,
     containers >=0.2 && <0.6,
     explicit-exception >=0.1.6 && <0.2,
     utility-ht >=0.0.5 && <0.1,
-    transformers >=0.2 && <0.4,
+    transformers >=0.2 && <0.5,
     bytestring >=0.9.1 && <0.11,
     base >=2 && <5
 
diff --git a/src/CabalSort.hs b/src/CabalSort.hs
--- a/src/CabalSort.hs
+++ b/src/CabalSort.hs
@@ -2,8 +2,7 @@
 
 import qualified Distribution.PackageDescription as P
 import Distribution.PackageDescription
-         (GenericPackageDescription, PackageDescription,
-          package, packageDescription, )
+         (GenericPackageDescription, package, packageDescription, )
 import Distribution.PackageDescription.Parse (readPackageDescription, )
 import Distribution.Package
          (Dependency(Dependency), PackageName(PackageName), pkgName, )
diff --git a/src/GhcPkgDep.hs b/src/GhcPkgDep.hs
--- a/src/GhcPkgDep.hs
+++ b/src/GhcPkgDep.hs
@@ -69,6 +69,7 @@
       optUser = False,
       optGlobal = False,
       optShowVersions = False,
+      -- ToDo: how about using PackageIndex?
       optPkgCmd = "ghc-pkg"
    }