diff --git a/positive.cabal b/positive.cabal
--- a/positive.cabal
+++ b/positive.cabal
@@ -1,6 +1,6 @@
 
 name:               positive
-version:            0.4
+version:            0.4.1
 cabal-version:      >= 1.10
 author:             Hans Hoglund
 maintainer:         Hans Hoglund <hans@hanshoglund.se>
@@ -21,7 +21,7 @@
 library
     build-depends:
         base            >= 4 && < 5,
-        nats            >= 0.2 && < 1,
+        nats            >= 1 && < 2,
         semigroups      >= 0.15.2 && < 1
     hs-source-dirs:     src
     default-language:   Haskell2010
diff --git a/src/Numeric/Positive.hs b/src/Numeric/Positive.hs
--- a/src/Numeric/Positive.hs
+++ b/src/Numeric/Positive.hs
@@ -16,12 +16,14 @@
     Eq,
     Ord,
     -- Data,
-    Real,
+    Real
     -- Ix,
     -- Typeable,
     -- Bits,
     -- Hashable,
-    Whole
+    
+    -- Gone since positive==1
+    -- Whole
     )
 
 instance Show Positive where