diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Changelog for simple-media-timestamp
 
+## v0.2.1.0
+
+* Add DerivingStrategies and StandaloneKindSignatures.
+
 ## v0.2.0.0
 
 * Use non-plural fields.
diff --git a/simple-media-timestamp.cabal b/simple-media-timestamp.cabal
--- a/simple-media-timestamp.cabal
+++ b/simple-media-timestamp.cabal
@@ -1,12 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.34.4.
+-- This file has been generated from package.yaml by hpack version 0.34.7.
 --
 -- see: https://github.com/sol/hpack
 
 name:           simple-media-timestamp
-version:        0.2.0.0
-synopsis:       A very simple timestamp.
+version:        0.2.1.0
+synopsis:       A very simple timestamp type.
+description:    A very simple timestamp type, could be used for subtitles or video playback.
 category:       Media
 author:         Daniel Firth
 maintainer:     dan.firth@homotopic.tech
@@ -20,7 +21,7 @@
 
 source-repository head
   type: git
-  location: https://gitlab.com/homotopic-tech/simple-media-timestamp
+  location: https://gitlab.homotopic.tech/haskell/simple-media-timestamp
 
 library
   exposed-modules:
@@ -29,6 +30,10 @@
       Paths_simple_media_timestamp
   hs-source-dirs:
       src
+  default-extensions:
+      DerivingStrategies
+      StandaloneKindSignatures
+  ghc-options: -Weverything -Wno-all-missed-specialisations -Wno-implicit-prelude -Wno-missing-safe-haskell-mode -Wno-prepositive-qualified-module -Wno-safe -Wno-unsafe
   build-depends:
       base >=4.7 && <5
   default-language: Haskell2010
diff --git a/src/Media/Timestamp.hs b/src/Media/Timestamp.hs
--- a/src/Media/Timestamp.hs
+++ b/src/Media/Timestamp.hs
@@ -10,22 +10,25 @@
   )
 where
 
+import Data.Kind (Type)
 -- | Timestamp data type.
 --
 -- @since 0.2.0.0
+type Time :: Type
 data Time = Time
-  { hour :: Int,
-    minute :: Int,
-    second :: Int,
+  { hour        :: Int,
+    minute      :: Int,
+    second      :: Int,
     millisecond :: Int
   }
-  deriving (Eq, Ord, Show)
+  deriving stock (Eq, Ord, Show)
 
 -- | Interval of two timestamps.
 --
 -- @since 0.1.0.0
+type Range :: Type
 data Range = Range
   { from :: Time,
-    to :: Time
+    to   :: Time
   }
-  deriving (Eq, Ord, Show)
+  deriving stock (Eq, Ord, Show)