diff --git a/electrum/transaction.py b/electrum/transaction.py
index 6f3432556..47e38f051 100644
--- a/electrum/transaction.py
+++ b/electrum/transaction.py
@@ -545,6 +545,7 @@ class Transaction:
 
     @property
     def locktime(self):
+        self.deserialize()
         return self._locktime
 
     @locktime.setter
@@ -555,6 +556,7 @@ class Transaction:
 
     @property
     def version(self):
+        self.deserialize()
         return self._version
 
     @version.setter