diff --git a/src/ZcashHaskell/Utils.hs b/src/ZcashHaskell/Utils.hs
index 62fb89c..4b783ac 100644
--- a/src/ZcashHaskell/Utils.hs
+++ b/src/ZcashHaskell/Utils.hs
@@ -135,7 +135,7 @@ createTransaction ::
   -> IO (Either TxError HexString)
 createTransaction sapAnchor orchAnchor tSpend sSpend oSpend outgoing znet bh build = do
   txResult <-
-    withBorshBufferOfInitSize 5120 $
+    withBorshBufferOfInitSize 10240 $
     rustWrapperCreateTx
       (case sapAnchor of
          Nothing -> "0"