diff --git a/music-score.cabal b/music-score.cabal
--- a/music-score.cabal
+++ b/music-score.cabal
@@ -1,6 +1,6 @@
 
 name:                   music-score
-version:                1.6.1
+version:                1.6.2
 author:                 Hans Hoglund
 maintainer:             Hans Hoglund
 license:                BSD3
@@ -32,17 +32,17 @@
                         transformers,
                         monadplus,
                         void,
-                        semigroups,
+                        semigroups              >= 0.13.0.1 && < 1,
                         monoid-extras,
                         nats,          
                         semigroupoids,
-                        musicxml2 == 1.6,
-                        lilypond == 1.6,
                         HCodecs                 >= 0.3 && < 0.4,
                         vector-space,
                         vector-space-points     == 0.1.3,
-                        music-pitch-literal     == 1.6,
-                        music-dynamics-literal  == 1.6,
+                        musicxml2               == 1.6.2,
+                        lilypond                == 1.6.2,
+                        music-pitch-literal     == 1.6.2,
+                        music-dynamics-literal  == 1.6.2,
                         prettify,
                         parsec
     exposed-modules:	Data.PairMonad