diff --git a/state/state.go b/state/state.go
index 575a1630e..fb5d78c47 100644
--- a/state/state.go
+++ b/state/state.go
@@ -86,7 +86,11 @@ func (s State) Equals(s2 State) bool {
 
 // Bytes serializes the State using go-wire.
 func (s State) Bytes() []byte {
-	return wire.BinaryBytes(s)
+	bz, err := wire.MarshalBinary(s)
+	if err != nil {
+		panic(err)
+	}
+	return bz
 }
 
 // IsEmpty returns true if the State is equal to the empty State.
diff --git a/state/store.go b/state/store.go
index de2d4d67c..df07ec540 100644
--- a/state/store.go
+++ b/state/store.go
@@ -1,7 +1,6 @@
 package state
 
 import (
-	"bytes"
 	"fmt"
 
 	abci "github.com/tendermint/abci/types"
@@ -70,12 +69,11 @@ func loadState(db dbm.DB, key []byte) (state State) {
 		return state
 	}
 
-	r, n, err := bytes.NewReader(buf), new(int), new(error)
-	wire.ReadBinaryPtr(&state, r, 0, n, err)
-	if *err != nil {
+	err := wire.UnmarshalBinary(buf, &state)
+	if err != nil {
 		// DATA HAS BEEN CORRUPTED OR THE SPEC HAS CHANGED
 		cmn.Exit(cmn.Fmt(`LoadState: Data has been corrupted or its spec has changed:
-                %v\n`, *err))
+                %v\n`, err))
 	}
 	// TODO: ensure that buf is completely read.
 
@@ -113,7 +111,11 @@ func NewABCIResponses(block *types.Block) *ABCIResponses {
 
 // Bytes serializes the ABCIResponse using go-wire
 func (a *ABCIResponses) Bytes() []byte {
-	return wire.BinaryBytes(*a)
+	bz, err := wire.MarshalBinary(*a)
+	if err != nil {
+		panic(err)
+	}
+	return bz
 }
 
 func (a *ABCIResponses) ResultsHash() []byte {
@@ -131,12 +133,11 @@ func LoadABCIResponses(db dbm.DB, height int64) (*ABCIResponses, error) {
 	}
 
 	abciResponses := new(ABCIResponses)
-	r, n, err := bytes.NewReader(buf), new(int), new(error)
-	wire.ReadBinaryPtr(abciResponses, r, 0, n, err)
-	if *err != nil {
+	err := wire.UnmarshalBinary(buf, abciResponses)
+	if err != nil {
 		// DATA HAS BEEN CORRUPTED OR THE SPEC HAS CHANGED
 		cmn.Exit(cmn.Fmt(`LoadABCIResponses: Data has been corrupted or its spec has
-                changed: %v\n`, *err))
+                changed: %v\n`, err))
 	}
 	// TODO: ensure that buf is completely read.
 
@@ -160,7 +161,11 @@ type ValidatorsInfo struct {
 
 // Bytes serializes the ValidatorsInfo using go-wire
 func (valInfo *ValidatorsInfo) Bytes() []byte {
-	return wire.BinaryBytes(*valInfo)
+	bz, err := wire.MarshalBinary(*valInfo)
+	if err != nil {
+		panic(err)
+	}
+	return bz
 }
 
 // LoadValidators loads the ValidatorSet for a given height.
@@ -189,12 +194,11 @@ func loadValidatorsInfo(db dbm.DB, height int64) *ValidatorsInfo {
 	}
 
 	v := new(ValidatorsInfo)
-	r, n, err := bytes.NewReader(buf), new(int), new(error)
-	wire.ReadBinaryPtr(v, r, 0, n, err)
-	if *err != nil {
+	err := wire.UnmarshalBinary(buf, v)
+	if err != nil {
 		// DATA HAS BEEN CORRUPTED OR THE SPEC HAS CHANGED
 		cmn.Exit(cmn.Fmt(`LoadValidators: Data has been corrupted or its spec has changed:
-                %v\n`, *err))
+                %v\n`, err))
 	}
 	// TODO: ensure that buf is completely read.
 
@@ -225,7 +229,11 @@ type ConsensusParamsInfo struct {
 
 // Bytes serializes the ConsensusParamsInfo using go-wire
 func (params ConsensusParamsInfo) Bytes() []byte {
-	return wire.BinaryBytes(params)
+	bz, err := wire.MarshalBinary(params)
+	if err != nil {
+		panic(err)
+	}
+	return bz
 }
 
 // LoadConsensusParams loads the ConsensusParams for a given height.
@@ -255,12 +263,11 @@ func loadConsensusParamsInfo(db dbm.DB, height int64) *ConsensusParamsInfo {
 	}
 
 	paramsInfo := new(ConsensusParamsInfo)
-	r, n, err := bytes.NewReader(buf), new(int), new(error)
-	wire.ReadBinaryPtr(paramsInfo, r, 0, n, err)
-	if *err != nil {
+	err := wire.UnmarshalBinary(buf, paramsInfo)
+	if err != nil {
 		// DATA HAS BEEN CORRUPTED OR THE SPEC HAS CHANGED
 		cmn.Exit(cmn.Fmt(`LoadConsensusParams: Data has been corrupted or its spec has changed:
-                %v\n`, *err))
+                %v\n`, err))
 	}
 	// TODO: ensure that buf is completely read.
 
diff --git a/state/txindex/kv/kv.go b/state/txindex/kv/kv.go
index ed4fcc8a6..f32f1f28d 100644
--- a/state/txindex/kv/kv.go
+++ b/state/txindex/kv/kv.go
@@ -67,10 +67,8 @@ func (txi *TxIndex) Get(hash []byte) (*types.TxResult, error) {
 		return nil, nil
 	}
 
-	r := bytes.NewReader(rawBytes)
-	var n int
-	var err error
-	txResult := wire.ReadBinary(&types.TxResult{}, r, 0, &n, &err).(*types.TxResult)
+	txResult := new(types.TxResult)
+	err := wire.UnmarshalBinary(rawBytes, txResult)
 	if err != nil {
 		return nil, fmt.Errorf("Error reading TxResult: %v", err)
 	}
@@ -93,7 +91,10 @@ func (txi *TxIndex) AddBatch(b *txindex.Batch) error {
 		}
 
 		// index tx by hash
-		rawBytes := wire.BinaryBytes(result)
+		rawBytes, err := wire.MarshalBinary(result)
+		if err != nil {
+			return err
+		}
 		storeBatch.Set(hash, rawBytes)
 	}
 
@@ -115,7 +116,10 @@ func (txi *TxIndex) Index(result *types.TxResult) error {
 	}
 
 	// index tx by hash
-	rawBytes := wire.BinaryBytes(result)
+	rawBytes, err := wire.MarshalBinary(result)
+	if err != nil {
+		return err
+	}
 	b.Set(hash, rawBytes)
 
 	b.Write()