diff --git a/music-dynamics.cabal b/music-dynamics.cabal
--- a/music-dynamics.cabal
+++ b/music-dynamics.cabal
@@ -1,6 +1,6 @@
 
 name:                   music-dynamics
-version:                1.8.1
+version:                1.9.0
 author:                 Hans Hoglund
 maintainer:             Hans Hoglund
 license:                BSD3
@@ -21,10 +21,10 @@
   location:         git://github.com/music-suite/music-dynamics.git
 
 library
-    build-depends:      base                    >= 4 && < 5,
-                        average                 >= 0.6 && < 1,
+    build-depends:      base                    >= 4        && < 5,
+                        average                 >= 0.6.1    && < 1,
                         semigroups              >= 0.13.0.1 && < 1,
-                        music-dynamics-literal  == 1.8.1
+                        music-dynamics-literal  == 1.9.0
     exposed-modules:    Music.Dynamics
                         Music.Dynamics.Absolute
                         Music.Dynamics.Common