diff --git a/sample-frame-np.cabal b/sample-frame-np.cabal
--- a/sample-frame-np.cabal
+++ b/sample-frame-np.cabal
@@ -1,5 +1,5 @@
 Name:             sample-frame-np
-Version:          0.0.2.1
+Version:          0.0.3
 License:          BSD3
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
@@ -25,7 +25,7 @@
 Library
   Build-Depends:
     sample-frame >=0.0.2 && <0.1,
-    numeric-prelude >= 0.2 && <0.3
+    numeric-prelude >= 0.2 && <0.4
   If flag(splitBase)
     Build-Depends:
       base >= 2 && <5
diff --git a/src/Sound/Frame/NumericPrelude/Stereo.hs b/src/Sound/Frame/NumericPrelude/Stereo.hs
--- a/src/Sound/Frame/NumericPrelude/Stereo.hs
+++ b/src/Sound/Frame/NumericPrelude/Stereo.hs
@@ -3,7 +3,6 @@
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 module Sound.Frame.NumericPrelude.Stereo (T, left, right, cons, map, ) where
 
-import qualified Sound.Frame.Stereo as Stereo
 import Sound.Frame.Stereo (T, left, right, cons, map, )
 
 import qualified Algebra.NormedSpace.Maximum   as NormedMax
diff --git a/src/Sound/Frame/NumericPrelude/StereoApplicative.hs b/src/Sound/Frame/NumericPrelude/StereoApplicative.hs
--- a/src/Sound/Frame/NumericPrelude/StereoApplicative.hs
+++ b/src/Sound/Frame/NumericPrelude/StereoApplicative.hs
@@ -8,7 +8,6 @@
 -}
 module Sound.Frame.NumericPrelude.StereoApplicative (T, left, right, cons, map, ) where
 
-import qualified Sound.Frame.Stereo as Stereo
 import Sound.Frame.Stereo (T, left, right, cons, map, )
 
 import qualified Algebra.NormedSpace.Maximum   as NormedMax