diff --git a/time-units-types.cabal b/time-units-types.cabal
--- a/time-units-types.cabal
+++ b/time-units-types.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           time-units-types
-version:        0.2.0.0
+version:        0.2.0.1
 synopsis:       Type-level representations of time durations.
 description:    Please see the README on GitHub at <https://github.com/mbg/time-units-types#readme>
 category:       Data
@@ -34,16 +34,10 @@
       src
   default-extensions:
       DataKinds
-      FlexibleInstances
-      FunctionalDependencies
-      KindSignatures
-      MultiParamTypeClasses
       PolyKinds
       ScopedTypeVariables
-      StandaloneKindSignatures
       TypeApplications
       TypeFamilies
-      TypeOperators
   ghc-options: -Wall
   build-depends:
       base >=4.7 && <5