diff --git a/either.cabal b/either.cabal
--- a/either.cabal
+++ b/either.cabal
@@ -1,6 +1,6 @@
 name:          either
 category:      Control, Monads
-version:       0.3
+version:       0.3.0.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -18,10 +18,10 @@
   location: git://github.com/ekmett/either.git
 
 library
-  build-depends: 
+  build-depends:
     base          >= 4       && < 5,
-    semigroups    >= 0.8     && < 0.9,
-    semigroupoids >= 1.2.6.1 && < 1.4,
+    semigroups    >= 0.8.3.1 && < 0.9,
+    semigroupoids >= 1.3.1.2 && < 1.4,
     transformers  >= 0.2     && < 0.4
 
   extensions: CPP