diff --git a/lib/transaction.py b/lib/transaction.py
index c6ac5fa16..fb7318fb5 100644
--- a/lib/transaction.py
+++ b/lib/transaction.py
@@ -486,6 +486,7 @@ class Transaction:
 
     def update(self, raw):
         self.raw = raw
+        self.inputs = None
         self.deserialize()
 
     def update_signatures(self, raw):