diff --git a/tropical.cabal b/tropical.cabal
--- a/tropical.cabal
+++ b/tropical.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                 tropical
-version:              0.0.0.0
+version:              0.0.0.1
 synopsis:             A library for tropical mathematics.
 description:
   Tropical numbers are the same as real numbers, except the operations are