diff --git a/src/mint.ts b/src/mint.ts
index 98da5af..d1f180e 100644
--- a/src/mint.ts
+++ b/src/mint.ts
@@ -138,10 +138,12 @@ const program = new Command()
   });
 
 const createScript = (plutus: string, ref: UTxO.UTxO): PlutusV3 => {
-  const scriptHex = UPLC.applyParamsToScript(plutus, [
-    TransactionHash.toBytes(ref.transactionId),
-    ref.index,
-  ]);
+  const scriptHex = UPLC.applySingleCborEncoding(
+    UPLC.applyParamsToScript(plutus, [
+      TransactionHash.toBytes(ref.transactionId),
+      ref.index,
+    ])
+  );
 
   return new PlutusV3({ bytes: hexToBytes(scriptHex) });
 };
diff --git a/src/nft.ts b/src/nft.ts
index 87faccc..e20c722 100644
--- a/src/nft.ts
+++ b/src/nft.ts
@@ -133,9 +133,11 @@ const program = new Command()
   });
 
 const createScript = (plutus: string, ref: UTxO.UTxO): PlutusV3 => {
-  const scriptHex = UPLC.applyParamsToScript(plutus, [
-    TransactionHash.toBytes(ref.transactionId),
-  ]);
+  const scriptHex = UPLC.applySingleCborEncoding(
+    UPLC.applyParamsToScript(plutus, [
+      TransactionHash.toBytes(ref.transactionId),
+    ])
+  );
 
   return new PlutusV3({ bytes: hexToBytes(scriptHex) });
 };