diff --git a/services/network_service.go b/services/network_service.go
index ce9f879..f32a901 100644
--- a/services/network_service.go
+++ b/services/network_service.go
@@ -92,7 +92,7 @@ func (s *NetworkAPIService) NetworkOptions(
 		Version: &types.Version{
 			RosettaVersion:    types.RosettaAPIVersion,
 			NodeVersion:       NodeVersion,
-			MiddlewareVersion: &MiddlewareVersion,
+			MiddlewareVersion: types.String(MiddlewareVersion),
 		},
 		Allow: &types.Allow{
 			OperationStatuses:       bitcoin.OperationStatuses,
diff --git a/services/network_service_test.go b/services/network_service_test.go
index 10dbd28..43fd014 100644
--- a/services/network_service_test.go
+++ b/services/network_service_test.go
@@ -27,7 +27,7 @@ import (
 )
 
 var (
-	middlewareVersion     = "0.0.6"
+	middlewareVersion     = "0.0.7"
 	defaultNetworkOptions = &types.NetworkOptionsResponse{
 		Version: &types.Version{
 			RosettaVersion:    types.RosettaAPIVersion,
diff --git a/services/types.go b/services/types.go
index 9dce8ab..e8cf044 100644
--- a/services/types.go
+++ b/services/types.go
@@ -39,15 +39,13 @@ const (
 	// inlineFetchLimit is the maximum number
 	// of transactions to fetch inline.
 	inlineFetchLimit = 100
-)
 
-var (
 	// MiddlewareVersion is the version
 	// of rosetta-bitcoin. We set this as a
 	// variable instead of a constant because
 	// we typically need the pointer of this
 	// value.
-	MiddlewareVersion = "0.0.6"
+	MiddlewareVersion = "0.0.7"
 )
 
 // Client is used by the servicers to get Peer information