diff --git a/void.cabal b/void.cabal
--- a/void.cabal
+++ b/void.cabal
@@ -1,6 +1,6 @@
 name:          void
 category:      Data Structures
-version:       0.5.0
+version:       0.5.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -18,6 +18,6 @@
   location: git://github.com/ekmett/void.git
 
 library
-  build-depends: base >= 3 && < 10, semigroups >= 0.4 && < 0.5
+  build-depends: base >= 3 && < 10, semigroups >= 0.5 && < 0.6
   exposed-modules: Data.Void
   ghc-options: -Wall