diff --git a/Gopkg.lock b/Gopkg.lock
index 03473487..bfe089b7 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -128,8 +128,8 @@
 [[projects]]
   name = "github.com/tendermint/go-amino"
   packages = ["."]
-  revision = "8b10adccaa7e4c2edc29c7b762169c34f4a36b32"
-  version = "0.9.1"
+  revision = "f55c3351f30e5987500020631f00e87a035ed415"
+  version = "0.9.3"
 
 [[projects]]
   name = "github.com/tendermint/tmlibs"
@@ -166,6 +166,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "ff08a2810853f018b3ce056747de63fe4c1782268796f457d3fa28305de2bd1d"
+  inputs-digest = "9748e96106582387ac49df1db8e4456bd51c8e9362c86992d6ce7011c1783f55"
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
index 908e48f5..a7f84bb5 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -47,7 +47,7 @@
 
 [[constraint]]
   name = "github.com/tendermint/go-amino"
-  version = "0.9.1"
+  version = "0.9.3"
 
 [[constraint]]
   name = "github.com/tendermint/tmlibs"
diff --git a/encode_test.go b/encode_test.go
index bc3f1a73..d9332238 100644
--- a/encode_test.go
+++ b/encode_test.go
@@ -1,185 +1,95 @@
 package crypto
 
-/*
-XXX Needs to be refactored to not use go-amino/data
-
 import (
-	"fmt"
-	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-	amino "github.com/tendermint/go-amino"
-	data "github.com/tendermint/go-amino/data"
 )
 
 type byter interface {
 	Bytes() []byte
 }
 
-// go to amino encoding and back
-func checkWire(t *testing.T, in byter, reader interface{}, typ byte, size int) {
-	// test to and from binary
-	bin, err := data.ToWire(in)
+func checkAminoBinary(t *testing.T, src byter, dst interface{}, size int) {
+	// Marshal to binary bytes.
+	bz, err := cdc.MarshalBinaryBare(src)
 	require.Nil(t, err, "%+v", err)
-	assert.Equal(t, typ, bin[0])
-	// make sure this is compatible with current (Bytes()) encoding
-	assert.Equal(t, in.Bytes(), bin)
-	// make sure we have the expected length
-	assert.Equal(t, size, len(bin))
-
-	err = data.FromWire(bin, reader)
+	// Make sure this is compatible with current (Bytes()) encoding.
+	assert.Equal(t, src.Bytes(), bz, "Amino binary vs Bytes() mismatch")
+	// Make sure we have the expected length.
+	assert.Equal(t, size, len(bz), "Amino binary size mismatch")
+	// Unmarshal.
+	err = cdc.UnmarshalBinaryBare(bz, dst)
 	require.Nil(t, err, "%+v", err)
 }
 
-// go to json encoding and back
-func checkJSON(t *testing.T, in interface{}, reader interface{}, typ string) {
-	// test to and from binary
-	js, err := data.ToJSON(in)
+func checkAminoJSON(t *testing.T, src interface{}, dst interface{}, isNil bool) {
+	// Marshal to JSON bytes.
+	js, err := cdc.MarshalJSON(src)
 	require.Nil(t, err, "%+v", err)
-	styp := `"` + typ + `"`
-	assert.True(t, strings.Contains(string(js), styp))
-
-	err = data.FromJSON(js, reader)
-	require.Nil(t, err, "%+v", err)
-
-	// also check text format
-	text, err := data.ToText(in)
-	require.Nil(t, err, "%+v", err)
-	parts := strings.Split(text, ":")
-	require.Equal(t, 2, len(parts))
-	// make sure the first part is the typ string
-	assert.Equal(t, typ, parts[0])
-	// and the data is also present in the json
-	assert.True(t, strings.Contains(string(js), parts[1]))
-}
-
-// make sure go-amino json can still figure this out...
-func checkWireJSON(t *testing.T, in interface{}, reader interface{}, typ byte) {
-	// test to and from binary
-	var err error
-	js := amino.JSONBytes(in)
-	btyp := fmt.Sprintf("[%d,", typ)
-	assert.True(t, strings.HasPrefix(string(js), btyp), string(js), btyp)
-
-	amino.ReadJSON(reader, js, &err)
+	if isNil {
+		assert.Equal(t, string(js), `null`)
+	} else {
+		assert.Contains(t, string(js), `"type":`)
+		assert.Contains(t, string(js), `"value":`)
+	}
+	// Unmarshal.
+	err = cdc.UnmarshalJSON(js, dst)
 	require.Nil(t, err, "%+v", err)
 }
 
 func TestKeyEncodings(t *testing.T) {
 	cases := []struct {
 		privKey PrivKey
-		keyType byte
-		keyName string
 		// 1 (type byte) + size of byte array
 		privSize, pubSize int
 	}{
 		{
-			privKey:  GenPrivKeyEd25519().Wrap(),
-			keyType:  TypeEd25519,
-			keyName:  NameEd25519,
-			privSize: 65,
-			pubSize:  33,
+			privKey:  GenPrivKeyEd25519(),
+			privSize: 69,
+			pubSize:  37,
 		},
 		{
-			privKey:  GenPrivKeySecp256k1().Wrap(),
-			keyType:  TypeSecp256k1,
-			keyName:  NameSecp256k1,
-			privSize: 33,
-			pubSize:  34,
+			privKey:  GenPrivKeySecp256k1(),
+			privSize: 37,
+			pubSize:  38,
 		},
 	}
 
 	for _, tc := range cases {
-		// check (de/en)codings of private key
-		var priv2, priv3, priv4 PrivKey
-		checkWire(t, tc.privKey, &priv2, tc.keyType, tc.privSize)
+		// Check (de/en)codings of PrivKeys.
+		var priv2, priv3 PrivKey
+		checkAminoBinary(t, tc.privKey, &priv2, tc.privSize)
 		assert.EqualValues(t, tc.privKey, priv2)
-		checkJSON(t, tc.privKey, &priv3, tc.keyName)
+		checkAminoJSON(t, tc.privKey, &priv3, false) // TODO also check Prefix bytes.
 		assert.EqualValues(t, tc.privKey, priv3)
-		checkWireJSON(t, tc.privKey, &priv4, tc.keyType)
-		assert.EqualValues(t, tc.privKey, priv4)
 
-		// check (de/en)codings of public key
+		// Check (de/en)codings of PubKeys.
 		pubKey := tc.privKey.PubKey()
-		var pub2, pub3, pub4 PubKey
-		checkWire(t, pubKey, &pub2, tc.keyType, tc.pubSize)
+		var pub2, pub3 PubKey
+		checkAminoBinary(t, pubKey, &pub2, tc.pubSize)
 		assert.EqualValues(t, pubKey, pub2)
-		checkJSON(t, pubKey, &pub3, tc.keyName)
+		checkAminoJSON(t, pubKey, &pub3, false) // TODO also check Prefix bytes.
 		assert.EqualValues(t, pubKey, pub3)
-		checkWireJSON(t, pubKey, &pub4, tc.keyType)
-		assert.EqualValues(t, pubKey, pub4)
 	}
 }
 
-func toFromJSON(t *testing.T, in interface{}, recvr interface{}) {
-	js, err := data.ToJSON(in)
-	require.Nil(t, err, "%+v", err)
-	err = data.FromJSON(js, recvr)
-	require.Nil(t, err, "%+v", err)
-}
-
 func TestNilEncodings(t *testing.T) {
-	// make sure sigs are okay with nil
+
+	// Check nil Signature.
 	var a, b Signature
-	toFromJSON(t, a, &b)
+	checkAminoJSON(t, &a, &b, true)
 	assert.EqualValues(t, a, b)
 
-	// make sure sigs are okay with nil
+	// Check nil PubKey.
 	var c, d PubKey
-	toFromJSON(t, c, &d)
+	checkAminoJSON(t, &c, &d, true)
 	assert.EqualValues(t, c, d)
 
-	// make sure sigs are okay with nil
+	// Check nil PrivKey.
 	var e, f PrivKey
-	toFromJSON(t, e, &f)
+	checkAminoJSON(t, &e, &f, true)
 	assert.EqualValues(t, e, f)
 
 }
-
-type SigMessage struct {
-	Key PubKey
-	Sig Signature
-}
-
-func (s SigMessage) Bytes() []byte {
-	return amino.BinaryBytes(s)
-}
-
-func TestEmbededWireEncodings(t *testing.T) {
-	cases := []struct {
-		privKey PrivKey
-		keyType byte
-		keyName string
-		size    int // pub + sig size
-	}{
-		{
-			privKey: GenPrivKeyEd25519().Wrap(),
-			keyType: TypeEd25519,
-			keyName: NameEd25519,
-			size:    2 + 32 + 64,
-		},
-		// {
-		// 	privKey: GenPrivKeySecp256k1().Wrap(),
-		// 	keyType: TypeSecp256k1,
-		// 	keyName: NameSecp256k1,
-		// 	size:    2 + 33 + 72, // ugh, either 72 or 73 depending....
-		// },
-	}
-
-	payload := randBytes(20)
-	for i, tc := range cases {
-		pubKey := tc.privKey.PubKey()
-		sig := tc.privKey.Sign(payload)
-		assert.True(t, pubKey.VerifyBytes(payload, sig), "%d", i)
-
-		msg := SigMessage{
-			Key: pubKey,
-			Sig: sig,
-		}
-		var msg2 SigMessage
-		checkWire(t, msg, &msg2, tc.keyType, tc.size)
-	}
-}
-*/
diff --git a/keys/types.go b/keys/types.go
index 16b8f6dd..40751ad7 100644
--- a/keys/types.go
+++ b/keys/types.go
@@ -42,7 +42,7 @@ func (i Info) Address() []byte {
 }
 
 func (i Info) bytes() []byte {
-	bz, err := cdc.MarshalBinary(i)
+	bz, err := cdc.MarshalBinaryBare(i)
 	if err != nil {
 		panic(err)
 	}
@@ -50,6 +50,6 @@ func (i Info) bytes() []byte {
 }
 
 func readInfo(bz []byte) (info Info, err error) {
-	err = cdc.UnmarshalBinary(bz, &info)
+	err = cdc.UnmarshalBinaryBare(bz, &info)
 	return
 }
diff --git a/priv_key.go b/priv_key.go
index adacb137..61d373f6 100644
--- a/priv_key.go
+++ b/priv_key.go
@@ -10,7 +10,7 @@ import (
 )
 
 func PrivKeyFromBytes(privKeyBytes []byte) (privKey PrivKey, err error) {
-	err = cdc.UnmarshalBinary(privKeyBytes, &privKey)
+	err = cdc.UnmarshalBinaryBare(privKeyBytes, &privKey)
 	return
 }
 
@@ -31,7 +31,7 @@ var _ PrivKey = PrivKeyEd25519{}
 type PrivKeyEd25519 [64]byte
 
 func (privKey PrivKeyEd25519) Bytes() []byte {
-	bz, err := cdc.MarshalBinary(privKey)
+	bz, err := cdc.MarshalBinaryBare(privKey)
 	if err != nil {
 		panic(err)
 	}
@@ -75,7 +75,7 @@ func (privKey PrivKeyEd25519) String() string {
 
 // Deterministically generates new priv-key bytes from key.
 func (privKey PrivKeyEd25519) Generate(index int) PrivKeyEd25519 {
-	bz, err := cdc.MarshalBinary(struct {
+	bz, err := cdc.MarshalBinaryBare(struct {
 		PrivKey [64]byte
 		Index   int
 	}{privKey, index})
@@ -113,7 +113,7 @@ var _ PrivKey = PrivKeySecp256k1{}
 type PrivKeySecp256k1 [32]byte
 
 func (privKey PrivKeySecp256k1) Bytes() []byte {
-	bz, err := cdc.MarshalBinary(privKey)
+	bz, err := cdc.MarshalBinaryBare(privKey)
 	if err != nil {
 		panic(err)
 	}
diff --git a/pub_key.go b/pub_key.go
index 8ed1df35..9be64acd 100644
--- a/pub_key.go
+++ b/pub_key.go
@@ -18,7 +18,7 @@ import (
 type Address = cmn.HexBytes
 
 func PubKeyFromBytes(pubKeyBytes []byte) (pubKey PubKey, err error) {
-	err = cdc.UnmarshalBinary(pubKeyBytes, &pubKey)
+	err = cdc.UnmarshalBinaryBare(pubKeyBytes, &pubKey)
 	return
 }
 
@@ -46,7 +46,7 @@ func (pubKey PubKeyEd25519) Address() Address {
 }
 
 func (pubKey PubKeyEd25519) Bytes() []byte {
-	bz, err := cdc.MarshalBinary(pubKey)
+	bz, err := cdc.MarshalBinaryBare(pubKey)
 	if err != nil {
 		panic(err)
 	}
@@ -108,7 +108,7 @@ func (pubKey PubKeySecp256k1) Address() Address {
 }
 
 func (pubKey PubKeySecp256k1) Bytes() []byte {
-	bz, err := cdc.MarshalBinary(pubKey)
+	bz, err := cdc.MarshalBinaryBare(pubKey)
 	if err != nil {
 		panic(err)
 	}
diff --git a/signature.go b/signature.go
index 3a0f6a7a..cfe92713 100644
--- a/signature.go
+++ b/signature.go
@@ -8,7 +8,7 @@ import (
 )
 
 func SignatureFromBytes(pubKeyBytes []byte) (pubKey Signature, err error) {
-	err = cdc.UnmarshalBinary(pubKeyBytes, &pubKey)
+	err = cdc.UnmarshalBinaryBare(pubKeyBytes, &pubKey)
 	return
 }
 
@@ -28,7 +28,7 @@ var _ Signature = SignatureEd25519{}
 type SignatureEd25519 [64]byte
 
 func (sig SignatureEd25519) Bytes() []byte {
-	bz, err := cdc.MarshalBinary(sig)
+	bz, err := cdc.MarshalBinaryBare(sig)
 	if err != nil {
 		panic(err)
 	}
@@ -61,7 +61,7 @@ var _ Signature = SignatureSecp256k1{}
 type SignatureSecp256k1 []byte
 
 func (sig SignatureSecp256k1) Bytes() []byte {
-	bz, err := cdc.MarshalBinary(sig)
+	bz, err := cdc.MarshalBinaryBare(sig)
 	if err != nil {
 		panic(err)
 	}
diff --git a/version.go b/version.go
index f641e03a..9c51b256 100644
--- a/version.go
+++ b/version.go
@@ -1,3 +1,3 @@
 package crypto
 
-const Version = "0.6.0"
+const Version = "0.6.1"