diff --git a/manifolds-core.cabal b/manifolds-core.cabal
--- a/manifolds-core.cabal
+++ b/manifolds-core.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                manifolds-core
-version:             0.5.0.0
+version:             0.5.0.1
 synopsis:            The basic classes for the manifolds hierarchy.
 description:         The basic classes for the
                      <http://hackage.haskell.org/package/manifolds manifolds> hierarchy.