diff --git a/synthesizer-alsa.cabal b/synthesizer-alsa.cabal
--- a/synthesizer-alsa.cabal
+++ b/synthesizer-alsa.cabal
@@ -1,5 +1,5 @@
 Name:           synthesizer-alsa
-Version:        0.5.0.3
+Version:        0.5.0.4
 License:        GPL
 License-File:   LICENSE
 Author:         Henning Thielemann <haskell@henning-thielemann.de>
@@ -19,7 +19,7 @@
 Build-Type:     Simple
 
 Source-Repository this
-  Tag:         0.5.0.3
+  Tag:         0.5.0.4
   Type:        darcs
   Location:    http://code.haskell.org/synthesizer/alsa/
 
@@ -41,7 +41,7 @@
 Library
   Build-Depends:
     synthesizer-midi >=0.6 && <0.7,
-    synthesizer-dimensional >=0.7 && <0.8,
+    synthesizer-dimensional >=0.7 && <0.9,
     synthesizer-core >=0.6 && <0.9,
     midi-alsa >=0.2 && <0.3,
     midi >=0.2 && <0.3,