diff --git a/sox.cabal b/sox.cabal
--- a/sox.cabal
+++ b/sox.cabal
@@ -1,5 +1,5 @@
 Name:             sox
-Version:          0.2.2.2
+Version:          0.2.2.3
 License:          GPL
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
@@ -41,7 +41,7 @@
   default:     False
 
 Source-Repository this
-  Tag:         0.2.2.2
+  Tag:         0.2.2.3
   Type:        darcs
   Location:    http://code.haskell.org/~thielema/sox/
 
@@ -59,7 +59,7 @@
     utility-ht >=0.0.5 && <0.1
   If flag(splitBase)
     Build-Depends:
-      process >=1.0 && <1.2,
+      process >=1.0 && <1.3,
       containers >=0.1 && <0.6,
       base >=2 && <5
   Else
@@ -72,7 +72,7 @@
     Hs-Source-Dirs: windows/src
   Else
     Hs-Source-Dirs: unix/src
-    Build-Depends: unix >=2.3 && <2.7
+    Build-Depends: unix >=2.3 && <2.8
 
   GHC-Options: -Wall
 
diff --git a/src/Sound/Sox/Convert.hs b/src/Sound/Sox/Convert.hs
--- a/src/Sound/Sox/Convert.hs
+++ b/src/Sound/Sox/Convert.hs
@@ -4,7 +4,7 @@
 import qualified Sound.Sox.Private.Arguments as Args
 import Data.Monoid (mconcat, )
 
-import qualified System.Cmd as Cmd
+import qualified System.Process as Cmd
 -- import qualified System.IO as IO
 import System.Exit (ExitCode, )