diff --git a/catalyst_voices_packages/catalyst_cardano/catalyst_cardano/README.md b/catalyst_voices_packages/catalyst_cardano/catalyst_cardano/README.md
index af110d7dab..3a1ec3c2ff 100644
--- a/catalyst_voices_packages/catalyst_cardano/catalyst_cardano/README.md
+++ b/catalyst_voices_packages/catalyst_cardano/catalyst_cardano/README.md
@@ -123,7 +123,7 @@ Transaction _buildUnsignedTx({
 
   final txOutput = TransactionOutput(
     address: preprodFaucetAddress,
-    amount: const Value(coin: Coin(1000000)),
+    amount: const Balance(coin: Coin(1000000)),
   );
 
   final txBuilder = TransactionBuilder(
diff --git a/catalyst_voices_packages/catalyst_cardano_serialization/README.md b/catalyst_voices_packages/catalyst_cardano_serialization/README.md
index 8188f53185..e9c6c10e71 100644
--- a/catalyst_voices_packages/catalyst_cardano_serialization/README.md
+++ b/catalyst_voices_packages/catalyst_cardano_serialization/README.md
@@ -91,7 +91,7 @@ void main() {
         'addr_test1qpu5vlrf4xkxv2qpwngf6cjhtw542ayty80v8dyr49rf5ewvxwdrt70'
         'qlcpeeagscasafhffqsxy36t90ldv06wqrk2qum8x5w',
       ),
-      amount: const Value(coin: Coin(10162333)),
+      amount: const Balance(coin: Coin(10162333)),
     ),
   );
 
@@ -99,12 +99,12 @@ void main() {
     address: ShelleyAddress.fromBech32(
       'addr_test1vzpwq95z3xyum8vqndgdd9mdnmafh3djcxnc6jemlgdmswcve6tkw',
     ),
-    amount: const Value(coin: Coin(1000000)),
+    amount: const Balance(coin: Coin(1000000)),
   );
 
   final txBuilder = TransactionBuilder(
     config: txBuilderConfig,
-    inputs: [utxo],
+    inputs: {utxo},
     // fee can be left empty so that it's auto calculated or can be hardcoded
     // fee: const Coin(1000000),
     ttl: const SlotBigNum(410021),