diff --git a/lib/primitives/tx.js b/lib/primitives/tx.js
index bb97e8ba..6bb7752d 100644
--- a/lib/primitives/tx.js
+++ b/lib/primitives/tx.js
@@ -46,7 +46,8 @@ function TX(options) {
   if (!(this instanceof TX))
     return new TX(options);
 
-  this.version = 1;
+  // Default version to 2 for Flo
+  this.version = 2;
   this.inputs = [];
   this.outputs = [];
   this.locktime = 0;