diff --git a/mutable-iter.cabal b/mutable-iter.cabal
--- a/mutable-iter.cabal
+++ b/mutable-iter.cabal
@@ -1,5 +1,5 @@
 Name:                mutable-iter
-Version:             0.2
+Version:             0.3
 Synopsis:            iteratees based upon mutable buffers
 Description:         Provides iteratees backed by mutable buffers.  This enables iteratees to run without any extra memory allocations.
 Homepage:            http://tanimoto.us/~jwlato/haskell/mutable-iter
@@ -31,4 +31,4 @@
     iteratee                  >= 0.5       && < 0.6,
     MonadCatchIO-transformers >= 0.2       && < 0.3,
     transformers              >= 0.2       && < 0.3,
-    vector                    >= 0.4       && < 0.5
+    vector                    >= 0.4       && < 0.8