diff --git a/benchmarks/xdr_test.go b/benchmarks/xdr_test.go
new file mode 100644
index 0000000000..a39f799382
--- /dev/null
+++ b/benchmarks/xdr_test.go
@@ -0,0 +1,89 @@
+package benchmarks
+
+import (
+	"bytes"
+	"encoding/base64"
+	"testing"
+
+	"github.com/stellar/go/gxdr"
+	"github.com/stellar/go/xdr"
+	"github.com/stretchr/testify/require"
+	goxdr "github.com/xdrpp/goxdr/xdr"
+)
+
+const input64 = "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"
+
+var input = func() []byte {
+	decoded, err := base64.StdEncoding.DecodeString(input64)
+	if err != nil {
+		panic(err)
+	}
+	return decoded
+}()
+
+func BenchmarkXDRUnmarshal(b *testing.B) {
+	b.StopTimer()
+	te := xdr.TransactionEnvelope{}
+
+	// Make sure the input is valid.
+	err := te.UnmarshalBinary(input)
+	require.NoError(b, err)
+	b.StartTimer()
+	// Benchmark.
+	for i := 0; i < b.N; i++ {
+		_ = te.UnmarshalBinary(input)
+	}
+}
+
+func BenchmarkGXDRUnmarshal(b *testing.B) {
+	b.StopTimer()
+	te := gxdr.TransactionEnvelope{}
+
+	// Make sure the input is valid, note goxdr will panic if there's a
+	// marshaling error.
+	te.XdrMarshal(&goxdr.XdrIn{In: bytes.NewReader(input)}, "")
+	b.StartTimer()
+
+	// Benchmark.
+	r := bytes.NewReader(input)
+	for i := 0; i < b.N; i++ {
+		r.Reset(input)
+		te.XdrMarshal(&goxdr.XdrIn{In: r}, "")
+	}
+}
+
+func BenchmarkXDRMarshal(b *testing.B) {
+	b.StopTimer()
+	te := xdr.TransactionEnvelope{}
+
+	// Make sure the input is valid.
+	err := te.UnmarshalBinary(input)
+	require.NoError(b, err)
+	output, err := te.MarshalBinary()
+	require.NoError(b, err)
+	require.Equal(b, input, output)
+	b.StartTimer()
+
+	// Benchmark.
+	for i := 0; i < b.N; i++ {
+		_, _ = te.MarshalBinary()
+	}
+}
+
+func BenchmarkGXDRMarshal(b *testing.B) {
+	b.StopTimer()
+	te := gxdr.TransactionEnvelope{}
+
+	// Make sure the input is valid, note goxdr will panic if there's a
+	// marshaling error.
+	te.XdrMarshal(&goxdr.XdrIn{In: bytes.NewReader(input)}, "")
+	output := bytes.Buffer{}
+	te.XdrMarshal(&goxdr.XdrOut{Out: &output}, "")
+
+	b.StartTimer()
+	// Benchmark.
+	for i := 0; i < b.N; i++ {
+		output.Reset()
+		te.XdrMarshal(&goxdr.XdrOut{Out: &output}, "")
+	}
+}
diff --git a/go.list b/go.list
index 141720055c..d4e4ec7836 100644
--- a/go.list
+++ b/go.list
@@ -70,7 +70,7 @@ github.com/spf13/jwalterweatherman v0.0.0-20141219030609-3d60171a6431
 github.com/spf13/pflag v0.0.0-20161005214240-4bd69631f475
 github.com/spf13/viper v0.0.0-20150621231900-db7ff930a189
 github.com/stellar/go 
-github.com/stellar/go-xdr v0.0.0-20201028102745-f80a23dac78a
+github.com/stellar/go-xdr v0.0.0-20211103144802-8017fc4bdfee
 github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible
 github.com/stretchr/objx v0.3.0
 github.com/stretchr/testify v1.7.0
diff --git a/go.mod b/go.mod
index 5062466bea..243d50b378 100644
--- a/go.mod
+++ b/go.mod
@@ -60,7 +60,7 @@ require (
 	github.com/spf13/jwalterweatherman v0.0.0-20141219030609-3d60171a6431 // indirect
 	github.com/spf13/pflag v0.0.0-20161005214240-4bd69631f475
 	github.com/spf13/viper v0.0.0-20150621231900-db7ff930a189
-	github.com/stellar/go-xdr v0.0.0-20201028102745-f80a23dac78a
+	github.com/stellar/go-xdr v0.0.0-20211103144802-8017fc4bdfee
 	github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible
 	github.com/stretchr/objx v0.3.0 // indirect
 	github.com/stretchr/testify v1.7.0
diff --git a/go.sum b/go.sum
index 87ee939acd..94780709b6 100644
--- a/go.sum
+++ b/go.sum
@@ -318,8 +318,8 @@ github.com/spf13/pflag v0.0.0-20161005214240-4bd69631f475 h1:RtZIgreTwcayPTOw7G5
 github.com/spf13/pflag v0.0.0-20161005214240-4bd69631f475/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/viper v0.0.0-20150621231900-db7ff930a189 h1:fvB1AFbBd6SfI9Rd0ooAJp8uLkZDbZaLFHi7ZnNP6uI=
 github.com/spf13/viper v0.0.0-20150621231900-db7ff930a189/go.mod h1:A8kyI5cUJhb8N+3pkfONlcEcZbueH6nhAm0Fq7SrnBM=
-github.com/stellar/go-xdr v0.0.0-20201028102745-f80a23dac78a h1:GnM0ArRp7EDbaTiFhSp/CLgyk2cacXxdUklqJmdJs1Q=
-github.com/stellar/go-xdr v0.0.0-20201028102745-f80a23dac78a/go.mod h1:yoxyU/M8nl9LKeWIoBrbDPQ7Cy+4jxRcWcOayZ4BMps=
+github.com/stellar/go-xdr v0.0.0-20211103144802-8017fc4bdfee h1:fbVs0xmXpBvVS4GBeiRmAE3Le70ofAqFMch1GTiq/e8=
+github.com/stellar/go-xdr v0.0.0-20211103144802-8017fc4bdfee/go.mod h1:yoxyU/M8nl9LKeWIoBrbDPQ7Cy+4jxRcWcOayZ4BMps=
 github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible h1:jMXXAcz6xTarGDQ4VtVbtERogcmDQw4RaE85Cr9CgoQ=
 github.com/stellar/throttled v2.2.3-0.20190823235211-89d75816f59d+incompatible/go.mod h1:7CJ23pXirXBJq45DqvO6clzTEGM/l1SfKrgrzLry8b4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=