diff --git a/CHANGELOG.md b/CHANGELOG.md
index 172efcc840..67c335cabd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -60,6 +60,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (rpc) [tharsis#671](https://github.com/tharsis/ethermint/pull/671) Don't pass base fee externally for `EthCall`/`EthEstimateGas` apis.
 * (evm) [tharsis#674](https://github.com/tharsis/ethermint/pull/674) Refactor `ApplyMessage`, remove
   `ApplyNativeMessage`.
+* (rpc) [tharsis#714](https://github.com/tharsis/ethermint/pull/714) remove `MsgEthereumTx` support in `TxConfig`
 
 ## [v0.7.2] - 2021-10-24
 
diff --git a/encoding/config.go b/encoding/config.go
index b1fc48e209..8e778954f7 100644
--- a/encoding/config.go
+++ b/encoding/config.go
@@ -1,18 +1,13 @@
 package encoding
 
 import (
-	"github.com/cosmos/cosmos-sdk/client"
 	amino "github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/cosmos/cosmos-sdk/simapp/params"
-	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
-	authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
-
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
+	"github.com/cosmos/cosmos-sdk/x/auth/tx"
 
 	enccodec "github.com/tharsis/ethermint/encoding/codec"
-	evmtypes "github.com/tharsis/ethermint/x/evm/types"
 )
 
 // MakeConfig creates an EncodingConfig for testing
@@ -24,7 +19,7 @@ func MakeConfig(mb module.BasicManager) params.EncodingConfig {
 	encodingConfig := params.EncodingConfig{
 		InterfaceRegistry: interfaceRegistry,
 		Marshaler:         marshaler,
-		TxConfig:          NewTxConfig(marshaler),
+		TxConfig:          tx.NewTxConfig(marshaler, tx.DefaultSignModes),
 		Amino:             cdc,
 	}
 
@@ -34,47 +29,3 @@ func MakeConfig(mb module.BasicManager) params.EncodingConfig {
 	mb.RegisterInterfaces(encodingConfig.InterfaceRegistry)
 	return encodingConfig
 }
-
-type txConfig struct {
-	cdc amino.ProtoCodecMarshaler
-	client.TxConfig
-}
-
-// NewTxConfig returns a new protobuf TxConfig using the provided ProtoCodec and sign modes. The
-// first enabled sign mode will become the default sign mode.
-func NewTxConfig(marshaler amino.ProtoCodecMarshaler) client.TxConfig {
-	return &txConfig{
-		marshaler,
-		authtx.NewTxConfig(marshaler, authtx.DefaultSignModes),
-	}
-}
-
-// TxEncoder overwrites sdk.TxEncoder to support MsgEthereumTx
-func (g txConfig) TxEncoder() sdk.TxEncoder {
-	return func(tx sdk.Tx) ([]byte, error) {
-		msg, ok := tx.(*evmtypes.MsgEthereumTx)
-		if ok {
-			return msg.AsTransaction().MarshalBinary()
-		}
-		return g.TxConfig.TxEncoder()(tx)
-	}
-}
-
-// TxDecoder overwrites sdk.TxDecoder to support MsgEthereumTx
-func (g txConfig) TxDecoder() sdk.TxDecoder {
-	return func(txBytes []byte) (sdk.Tx, error) {
-		tx := &ethtypes.Transaction{}
-
-		err := tx.UnmarshalBinary(txBytes)
-		if err == nil {
-			msg := &evmtypes.MsgEthereumTx{}
-			err := msg.FromEthereumTx(tx)
-			if err != nil {
-				return nil, err
-			}
-			return msg, nil
-		}
-
-		return g.TxConfig.TxDecoder()(txBytes)
-	}
-}
diff --git a/encoding/config_test.go b/encoding/config_test.go
index 7560ccdddb..bcd086ccc8 100644
--- a/encoding/config_test.go
+++ b/encoding/config_test.go
@@ -27,13 +27,8 @@ func TestTxEncoding(t *testing.T) {
 
 	cfg := encoding.MakeConfig(app.ModuleBasics)
 
-	bz, err := cfg.TxConfig.TxEncoder()(msg)
-	require.NoError(t, err, "encoding failed")
-
-	tx, err := cfg.TxConfig.TxDecoder()(bz)
-	require.NoError(t, err, "decoding failed")
-	require.IsType(t, &evmtypes.MsgEthereumTx{}, tx)
-	require.Equal(t, msg.Data, tx.(*evmtypes.MsgEthereumTx).Data)
+	_, err = cfg.TxConfig.TxEncoder()(msg)
+	require.Error(t, err, "encoding failed")
 
 	// FIXME: transaction hashing is hardcoded on Terndermint:
 	// See https://github.com/tendermint/tendermint/issues/6539 for reference