diff --git a/hydrogen-prelude.cabal b/hydrogen-prelude.cabal
--- a/hydrogen-prelude.cabal
+++ b/hydrogen-prelude.cabal
@@ -1,5 +1,5 @@
 name:                 hydrogen-prelude
-version:              0.7
+version:              0.7.1
 homepage:             https://github.com/scravy/hydrogen-prelude
 synopsis:             Hydrogen Prelude
 license:              BSD3
diff --git a/src/Hydrogen/Prelude.hs b/src/Hydrogen/Prelude.hs
--- a/src/Hydrogen/Prelude.hs
+++ b/src/Hydrogen/Prelude.hs
@@ -148,12 +148,15 @@
 deriving instance Generic TimeZone
 deriving instance Generic TimeOfDay
 deriving instance Generic UniversalTime
+deriving instance Generic ZonedTime
 
 instance Serialize Day
 instance Serialize LocalTime
 instance Serialize TimeOfDay
 instance Serialize TimeZone
 instance Serialize UniversalTime
+instance Serialize Version
+instance Serialize ZonedTime
 
 instance Serialize (Fixed E12) where
     put (MkFixed int) = put int