diff --git a/grid.cabal b/grid.cabal
--- a/grid.cabal
+++ b/grid.cabal
@@ -1,5 +1,5 @@
 name:           grid
-version:        5.1
+version:        6.0
 synopsis:       Tools for working with regular grids (graphs, lattices).
 description:    Provides tools for working with regular arrangements
                 of tiles, such as might be used in a board game or some