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:                1.6.1
+version:                1.6.2
 author:                 Hans Hoglund
 maintainer:             Hans Hoglund
 license:                BSD3
@@ -25,9 +25,9 @@
     build-depends:      base                    >= 4 && < 5,
                         time,
                         random,
-                        semigroups,
+                        semigroups              >= 0.13.0.1 && < 1,
                         semigroupoids,
-                        music-dynamics-literal  == 1.6
+                        music-dynamics-literal  == 1.6.2
     exposed-modules:    Music.Dynamics
                         Music.Dynamics.Absolute
                         Music.Dynamics.Common