diff --git a/libraries/cbor/src/reader.rs b/libraries/cbor/src/reader.rs
index fa03521..9d2a23e 100644
--- a/libraries/cbor/src/reader.rs
+++ b/libraries/cbor/src/reader.rs
@@ -38,9 +38,10 @@ pub enum DecoderError {
 }
 
 /// Deserialize CBOR binary data to produce a single [`Value`], expecting that there is no additional data.
-/// Supports arbitrarily nested CBOR (so the [`DecoderError::TooMuchNesting`] error is never emitted).
+/// Maximum level of nesting supported is 127; more deeply nested structures will fail with
+/// [`DecoderError::TooMuchNesting`].
 pub fn read(encoded_cbor: &[u8]) -> Result<Value, DecoderError> {
-    read_nested(encoded_cbor, None)
+    read_nested(encoded_cbor, Some(i8::MAX))
 }
 
 /// Deserialize CBOR binary data to produce a single [`Value`], expecting that there is no additional data.  If
diff --git a/libraries/cbor/src/writer.rs b/libraries/cbor/src/writer.rs
index f465010..16a0f21 100644
--- a/libraries/cbor/src/writer.rs
+++ b/libraries/cbor/src/writer.rs
@@ -25,9 +25,10 @@ pub enum EncoderError {
 }
 
 /// Convert a [`Value`] to serialized CBOR data, consuming it along the way and appending to the provided vector.
-/// Supports arbitrarily nested CBOR (so the [`EncoderError::TooMuchNesting`] error is never emitted).
+/// Maximum level of nesting supported is 127; more deeply nested structures will fail with
+/// [`EncoderError::TooMuchNesting`].
 pub fn write(value: Value, encoded_cbor: &mut Vec<u8>) -> Result<(), EncoderError> {
-    write_nested(value, encoded_cbor, None)
+    write_nested(value, encoded_cbor, Some(i8::MAX))
 }
 
 /// Convert a [`Value`] to serialized CBOR data, consuming it along the way and appending to the provided vector.  If