diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for elm-export-persistent
 
+## 1.0.0 -- 2021-01-09
+
+* Removed duplicate Generic instance for BackendKey
+
 ## 0.2.0 -- 2018-03-12
 
 * Fixed compilation issue with missing ToJSON constraint on Entity keys
diff --git a/elm-export-persistent.cabal b/elm-export-persistent.cabal
--- a/elm-export-persistent.cabal
+++ b/elm-export-persistent.cabal
@@ -2,7 +2,7 @@
 -- further documentation, see http://haskell.org/cabal/users-guide/
 
 name:                elm-export-persistent
-version:             0.2.0
+version:             1.0.0
 synopsis:            elm-export persistent entities
 description:
   Ent is a newtype that wraps Persistent Entity's, allowing you to export them
@@ -21,6 +21,7 @@
 tested-with:         GHC == 7.10.3
                    , GHC == 8.0.2
                    , GHC == 8.2.2
+                   , GHC == 8.10.3
 
 source-repository head
   type:     git
diff --git a/src/Elm/Export/Persist/BackendKey.hs b/src/Elm/Export/Persist/BackendKey.hs
--- a/src/Elm/Export/Persist/BackendKey.hs
+++ b/src/Elm/Export/Persist/BackendKey.hs
@@ -23,5 +23,4 @@
 import Database.Persist
 import Database.Persist.Sql
 
-deriving instance Generic (BackendKey SqlBackend)
 deriving instance ElmType (BackendKey SqlBackend)