diff --git a/README.md b/README.md
index 9c2df74..4853ad9 100644
--- a/README.md
+++ b/README.md
@@ -83,24 +83,17 @@ fn log(self: a, serializer: fn(a) -> String) {
 So we can attach it to anywhere like this:
 
 ```diff
-Input {
-  output_reference: OutputReference(TransactionId('tx_0'), 0),
+let input = Input {
+  output_reference: OutputReference(TransactionId("tx_0"), 0),
   output: Output {
+    value: value.from_lovelace(111_000_000) |> value.add("pid", "name", 1),
     address: Address {
-      payment_credential: ScriptCredential('script_hash')
-      stake_credential: None
+      payment_credential: ScriptCredential("script_hash"),
+      stake_credential: None,
     },
-    value: Value ([
-        h'',
-        h'',
-        111000000
-    ],[
-        h'706964', # pid
-        h'6E616D65', # name
-        1
-    ]),
-    datum: NoDatum
-  }
+    datum: NoDatum,
+    reference_script: None,
+  },
 }
 + |> log(stringify.input)
 ```
diff --git a/lib/stringify.ak b/lib/stringify.ak
index 08926cd..89e52df 100644
--- a/lib/stringify.ak
+++ b/lib/stringify.ak
@@ -361,7 +361,7 @@ fn is_close(chr: ByteArray) {
   }
 }
 
-pub fn newline(self: ByteArray) {
+fn newline(self: ByteArray) {
   self |> bytearray.concat("\n")
 }
 
diff --git a/lib/stringify_test.ak b/lib/stringify_test.ak
index abd92db..f267d95 100644
--- a/lib/stringify_test.ak
+++ b/lib/stringify_test.ak
@@ -1,7 +1,6 @@
 use aiken/bytearray
 use aiken/cbor
 use aiken/dict
-use aiken/string
 use aiken/transaction.{
   InlineDatum, Input, Mint, NoDatum, Output, OutputReference, ScriptPurpose,
   Spend, Transaction, TransactionId,
@@ -98,10 +97,7 @@ test log_data() {
 }
 
 fn script_purpose_compare(a: ScriptPurpose, b: ScriptPurpose) {
-  bytearray.compare(
-    a |> cbor.diagnostic |> string.to_bytearray,
-    b |> cbor.diagnostic |> string.to_bytearray,
-  )
+  bytearray.compare(cbor.serialise(a), cbor.serialise(b))
 }
 
 test log_tx() {