diff --git a/json-rpc-generic.cabal b/json-rpc-generic.cabal
--- a/json-rpc-generic.cabal
+++ b/json-rpc-generic.cabal
@@ -1,5 +1,5 @@
 name:                json-rpc-generic
-version:             0.2.1.3
+version:             0.2.1.4
 synopsis:            Generic encoder and decode for JSON-RPC
 description:         This package contains generic encoder and decode for JSON-RPC
 homepage:            http://github.com/khibino/haskell-json-rpc-generic
@@ -12,7 +12,8 @@
 build-type:          Simple
 -- extra-source-files:
 cabal-version:       >=1.10
-tested-with:           GHC == 8.2.1, GHC == 8.2.2
+tested-with:           GHC == 8.4.1, GHC == 8.4.2
+                     , GHC == 8.2.1, GHC == 8.2.2
                      , GHC == 8.0.1, GHC == 8.0.2
                      , GHC == 7.10.1, GHC == 7.10.2, GHC == 7.10.3
                      , GHC == 7.8.1, GHC == 7.8.2, GHC == 7.8.3, GHC == 7.8.4
@@ -46,7 +47,6 @@
                        , transformers
                        , containers
                        , unordered-containers
-                       , bytestring >=0.10
                        , text
                        , dlist
                        , scientific