diff --git a/Data/Semigroup/Numbered.hs b/Data/Semigroup/Numbered.hs
--- a/Data/Semigroup/Numbered.hs
+++ b/Data/Semigroup/Numbered.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : LGPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) justussa $ kth.se
 -- Stability   : experimental
 -- Portability : portable
 -- 
@@ -25,19 +25,23 @@
 
 import GHC.TypeLits
 import qualified Data.List.NonEmpty as NE
-import Data.Foldable
+import qualified Data.Foldable as Foldable
 
 import Data.Proxy
 import Data.Void
 
+import Control.Applicative
+
 import Data.CallStack (HasCallStack)
 
 class SemigroupNo (n :: Nat) g where
+  {-# MINIMAL sappendN | sconcatN #-}
+
   sappendN :: proxy n -> g -> g -> g
   sappendN p x y = sconcatN p $ x NE.:|[y]
   
   sconcatN :: proxy n -> NE.NonEmpty g -> g
-  sconcatN = foldr1 . sappendN
+  sconcatN = Foldable.foldr1 . sappendN
   
   stimesN :: (Integral b, HasCallStack) => proxy n -> b -> g -> g
    -- Adapted from
@@ -58,7 +62,7 @@
 
 instance (SemigroupNo n g) => SemigroupNo n (a -> g) where
   sappendN p f g x = sappendN p (f x) (g x)
-  sconcatN p fs x = sconcatN p $ ($x)<$>fs
+  sconcatN p fs x = sconcatN p $ ($ x)<$>fs
   stimesN p n f = stimesN p n . f
 
 instance (SemigroupNo n g) => SemigroupNo n (Maybe g) where
@@ -97,14 +101,14 @@
   sappendN p (x:xs) (y:ys) = sappendN p x y : sappendN p xs ys
 
 instance SemigroupNo 1 [[Void]] where sappendN _ = (++)
-instance SemigroupNo 1 [[()]] where sconcatN _ = paddedLines () . concat
-instance SemigroupNo 1 [[Char]] where sconcatN _ = paddedLines ' ' . concat
-instance SemigroupNo 1 [[Int]] where sconcatN _ = paddedLines 0 . concat
-instance SemigroupNo 1 [[Integer]] where sconcatN _ = paddedLines 0 . concat
-instance SemigroupNo 1 [[Float]] where sconcatN _ = paddedLines 0 . concat
-instance SemigroupNo 1 [[Double]] where sconcatN _ = paddedLines 0 . concat
-instance SemigroupNo 1 [[Rational]] where sconcatN _ = paddedLines 0 . concat
-instance SemigroupNo 1 [[Maybe a]] where sconcatN _ = paddedLines Nothing . concat
+instance SemigroupNo 1 [[()]] where sconcatN _ = paddedLines () . Foldable.concat
+instance SemigroupNo 1 [[Char]] where sconcatN _ = paddedLines ' ' . Foldable.concat
+instance SemigroupNo 1 [[Int]] where sconcatN _ = paddedLines 0 . Foldable.concat
+instance SemigroupNo 1 [[Integer]] where sconcatN _ = paddedLines 0 . Foldable.concat
+instance SemigroupNo 1 [[Float]] where sconcatN _ = paddedLines 0 . Foldable.concat
+instance SemigroupNo 1 [[Double]] where sconcatN _ = paddedLines 0 . Foldable.concat
+instance SemigroupNo 1 [[Rational]] where sconcatN _ = paddedLines 0 . Foldable.concat
+instance SemigroupNo 1 [[Maybe a]] where sconcatN _ = paddedLines Nothing . Foldable.concat
 instance (SemigroupNo 1 [[a]]) => SemigroupNo 1 [[[a]]] where
   sappendN _ [] ys = ys
   sappendN _ xs [] = xs
diff --git a/numbered-semigroups.cabal b/numbered-semigroups.cabal
--- a/numbered-semigroups.cabal
+++ b/numbered-semigroups.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                numbered-semigroups
-version:             0.1.0.0
+version:             0.1.1.0
 synopsis:            A sequence of semigroups, for composing stuff in multiple spatial directions.
 description:         Some types are composable in multiple “directions”, either in
                      a literal sense (<http://hackage.haskell.org/package/diagrams diagrams>
@@ -16,7 +16,7 @@
 license:             LGPL-3
 license-file:        LICENSE
 author:              Justus Sagemüller
-maintainer:          (@) jsagemue $ uni-koeln.de
+maintainer:          (@) justussa $ kth.se
 -- copyright:           
 category:            Data
 build-type:          Simple
@@ -27,8 +27,10 @@
   exposed-modules:     Data.Semigroup.Numbered
   -- other-modules:       
   -- other-extensions:    
-  build-depends:       base >=4.8 && <4.11
-                       , semigroups
-                       , call-stack
+  build-depends:       base >=4.6 && <4.21
+                       , semigroups <0.21
+                       , void <0.8
+                       , tagged <0.9
+                       , call-stack <0.5
   -- hs-source-dirs:      
   default-language:    Haskell2010