diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,6 +1,6 @@
-0.0.10
+0.0.11
 
-* Add `NumberM` alias and construction function.
+* Update dependencies.
 
 0.0.9
 
diff --git a/notzero.cabal b/notzero.cabal
--- a/notzero.cabal
+++ b/notzero.cabal
@@ -1,5 +1,5 @@
 name:               notzero
-version:            0.0.10
+version:            0.0.11
 license:            BSD3
 license-file:       LICENSE
 author:             Tony Morris <ʇǝu˙sıɹɹoɯʇ@ןןǝʞsɐɥ> <dibblego>
@@ -29,13 +29,13 @@
                     Haskell2010
 
   build-depends:
-                      base          >= 4.7 && < 5
+                      base          >= 4.7 && <= 5
                     , mtl           >= 2.0 && < 2.3
                     , semigroups    >= 0.8
                     , semigroupoids >= 4.0
                     , bifunctors    >= 3.0
                     , lens          >= 4.0 && < 5
-                    , transformers  >= 0.3 && < 0.5
+                    , transformers  >= 0.3 && < 0.6
 
   ghc-options:
                     -Wall
diff --git a/src/Data/NotZeroOr.hs b/src/Data/NotZeroOr.hs
--- a/src/Data/NotZeroOr.hs
+++ b/src/Data/NotZeroOr.hs
@@ -8,8 +8,6 @@
 , isoNumber
 , NotZeroOrT(..)
 , isoNotZeroOrT
-, NumberM
-, numberM
 ) where
 
 import Control.Applicative(Applicative(pure, (<*>)), liftA2)
@@ -148,15 +146,6 @@
   iso
     (NotZeroOrT . Identity)
     (\(NotZeroOrT (Identity x)) -> x)
-
-type NumberM a f =
-  NotZeroOrT a f ()
-
-numberM ::
-  f (Number a) 
-  -> NumberM a f
-numberM =
-  NotZeroOrT
 
 instance Functor f => Functor (NotZeroOrT a f) where
   fmap f (NotZeroOrT q) =