diff --git a/Data/Vector/Instances.hs b/Data/Vector/Instances.hs
--- a/Data/Vector/Instances.hs
+++ b/Data/Vector/Instances.hs
@@ -87,12 +87,6 @@
   (<>) = (++)
   {-# INLINE (<>) #-}
   
-instance MonadPlus Vector where
-  mzero = Vector.empty
-  {-# INLINE mzero #-}
-  mplus = (++)
-  {-# INLINE mplus #-}
-
 instance Alt Vector where
   (<!>) = (++)
   {-# INLINE (<!>) #-}
diff --git a/vector-instances.cabal b/vector-instances.cabal
--- a/vector-instances.cabal
+++ b/vector-instances.cabal
@@ -1,5 +1,5 @@
 name:                vector-instances
-version:             2.0.3
+version:             2.0.4.1
 synopsis:            Orphan Instances for 'Data.Vector'
 homepage:            http://github.com/ekmett/vector-instances
 license:             BSD3
@@ -23,9 +23,9 @@
 
   build-depends:
     base          >= 4 && < 5,
-    vector        >= 0.8 && < 0.9,
-    semigroupoids >= 1.2.4 && < 1.3,
+    vector        >= 0.9 && < 0.10,
+    semigroupoids >= 1.2.6.1 && < 1.3,
     semigroups    >= 0.8 && < 0.9,
-    comonad       >= 1.1.1 && < 1.2,
-    pointed       >= 2.0 && < 2.1,
-    keys          >= 2.1 && < 2.2
+    comonad       >= 1.1.1.1 && < 1.2,
+    pointed       >= 2.0.3 && < 2.1,
+    keys          >= 2.1.2 && < 2.2