diff --git a/src/Data/TimeDomain.hs b/src/Data/TimeDomain.hs
--- a/src/Data/TimeDomain.hs
+++ b/src/Data/TimeDomain.hs
@@ -1,23 +1,22 @@
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE TypeFamilies #-}
+
 {- |
 This module defines the 'TimeDomain' class.
 Its instances model time,
 simulated and realtime.
 Several instances such as 'UTCTime', 'Double' and 'Integer' are supplied here.
 -}
-
-{-# LANGUAGE FlexibleContexts #-}
-{-# LANGUAGE FlexibleInstances #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
-{-# LANGUAGE TypeFamilies #-}
-
-module Data.TimeDomain
-  ( module Data.TimeDomain
-  , UTCTime
-  )
-  where
+module Data.TimeDomain (
+  module Data.TimeDomain,
+  UTCTime,
+)
+where
 
 -- time
-import Data.Time.Clock (UTCTime, diffUTCTime, addUTCTime)
+import Data.Time.Clock (UTCTime, addUTCTime, diffUTCTime)
 
 {- |
 A time domain is an affine space representing a notion of time,
@@ -29,20 +28,18 @@
 * @(t `addTime` dt) `diffTime` t = dt@
 * @(t `addTime` dt1) `addTime` dt2 = t `addTime` (dt1 `add` dt2)@
 -}
-class TimeDifference (Diff time) => TimeDomain time where
+class (TimeDifference (Diff time)) => TimeDomain time where
   -- | The type of differences or durations between two timestamps
   type Diff time
 
-  {- | Compute the difference between two timestamps.
-
-  Mnemonic: 'diffTime' behaves like the '(-)' operator:
-
-  @'diffTime' earlier later = later `'diffTime'` earlier@ is the duration it takes from @earlier@ to @later@.
-  -}
+  -- | Compute the difference between two timestamps.
+  --
+  --   Mnemonic: 'diffTime' behaves like the '(-)' operator:
+  --
+  --   @'diffTime' earlier later = later `'diffTime'` earlier@ is the duration it takes from @earlier@ to @later@.
   diffTime :: time -> time -> Diff time
 
-  {- | Add a time difference to a timestamp.
-  -}
+  -- | Add a time difference to a timestamp.
   addTime :: time -> Diff time -> time
 
 {- | A type of durations, or differences betweens time stamps.
@@ -103,14 +100,14 @@
   addTime _ _ = ()
 
 -- | Any 'Num' can be wrapped to form a 'TimeDomain'.
-newtype NumTimeDomain a = NumTimeDomain { fromNumTimeDomain :: a }
-  deriving Num
+newtype NumTimeDomain a = NumTimeDomain {fromNumTimeDomain :: a}
+  deriving (Num)
 
-instance Num a => TimeDifference (NumTimeDomain a) where
+instance (Num a) => TimeDifference (NumTimeDomain a) where
   difference = (-)
   add = (+)
 
-instance Num a => TimeDomain (NumTimeDomain a) where
+instance (Num a) => TimeDomain (NumTimeDomain a) where
   type Diff (NumTimeDomain a) = NumTimeDomain a
   diffTime = (-)
   addTime = (+)
diff --git a/time-domain.cabal b/time-domain.cabal
--- a/time-domain.cabal
+++ b/time-domain.cabal
@@ -1,44 +1,43 @@
-cabal-version:      2.4
-name:               time-domain
-version:            0.1.0.5
-license:            MIT
-license-file:       LICENSE
-author:             Manuel Bärenz
-maintainer:         programming@manuelbaerenz.de
-synopsis:           A library for time domains and durations
-description:        This library mainly provides a type class, 'TimeDomain',
-                    which can be used to specify times and durations.
-                    There are some instances for standard types from @base@ and @time@.
-extra-source-files: CHANGELOG.md
-category:           FRP
-homepage:           https://github.com/turion/time-domain/
+cabal-version: 2.4
+name: time-domain
+version: 1.6
+license: MIT
+license-file: LICENSE
+author: Manuel Bärenz
+maintainer: programming@manuelbaerenz.de
+synopsis: A library for time domains and durations
+description:
+  This library mainly provides a type class, 'TimeDomain',
+  which can be used to specify times and durations.
+  There are some instances for standard types from @base@ and @time@.
 
+extra-source-files: CHANGELOG.md
+category: FRP
 tested-with:
-  ghc ==8.8.4
-  ghc ==8.10.7
-  ghc ==9.0.2
-  ghc ==9.2.8
-  ghc ==9.4.8
-  ghc ==9.6.3
-  ghc ==9.8.1
-  ghc ==9.10.1
+  ghc ==8.8
+  ghc ==8.10
+  ghc ==9.0
+  ghc ==9.2
+  ghc ==9.4
+  ghc ==9.6
+  ghc ==9.8
+  ghc ==9.10
+  ghc ==9.12
 
 source-repository head
-  type:     git
-  location: https://github.com/turion/time-domain.git
-source-repository this
-  type:     git
-  location: https://github.com/turion/time-domain.git
-  tag:      v0.1.0.4
+  type: git
+  location: https://github.com/turion/rhine
 
 library
-  exposed-modules:  Data.TimeDomain
+  exposed-modules: Data.TimeDomain
   build-depends:
-      base >= 4.13.0 && < 4.21
-    , time >= 1.12 && < 1.15
-  hs-source-dirs:   src
+    base >=4.13.0 && <4.22,
+    time >=1.11 && <1.16,
+
+  hs-source-dirs: src
   default-language: Haskell2010
-  ghc-options:  -W
+  ghc-options: -W
+
   if flag(dev)
     ghc-options: -Werror