diff --git a/vendor/github.com/Shopify/sarama/add_offsets_to_txn_request.go b/vendor/github.com/Shopify/sarama/add_offsets_to_txn_request.go
index fc227ab..a96af93 100644
--- a/vendor/github.com/Shopify/sarama/add_offsets_to_txn_request.go
+++ b/vendor/github.com/Shopify/sarama/add_offsets_to_txn_request.go
@@ -1,6 +1,6 @@
 package sarama
 
-//AddOffsetsToTxnRequest adds offsets to a transaction request
+// AddOffsetsToTxnRequest adds offsets to a transaction request
 type AddOffsetsToTxnRequest struct {
 	TransactionalID string
 	ProducerID      int64
@@ -48,6 +48,10 @@
 	return 0
 }
 
+func (a *AddOffsetsToTxnRequest) headerVersion() int16 {
+	return 1
+}
+
 func (a *AddOffsetsToTxnRequest) requiredVersion() KafkaVersion {
 	return V0_11_0_0
 }