diff --git a/listings/ch19-advanced-features/listing-19-31/hello_macro/hello_macro_derive/Cargo.toml b/listings/ch19-advanced-features/listing-19-31/hello_macro/hello_macro_derive/Cargo.toml
index aa076ac48b..ed9e917ad0 100644
--- a/listings/ch19-advanced-features/listing-19-31/hello_macro/hello_macro_derive/Cargo.toml
+++ b/listings/ch19-advanced-features/listing-19-31/hello_macro/hello_macro_derive/Cargo.toml
@@ -7,5 +7,5 @@ edition = "2021"
 proc-macro = true
 
 [dependencies]
-syn = "1.0"
+syn = "2.0"
 quote = "1.0"
diff --git a/src/ch19-06-macros.md b/src/ch19-06-macros.md
index 7731869eae..f24a818c18 100644
--- a/src/ch19-06-macros.md
+++ b/src/ch19-06-macros.md
@@ -508,6 +508,6 @@ and do one more project!
 [tlborm]: https://veykril.github.io/tlborm/
 [`syn`]: https://crates.io/crates/syn
 [`quote`]: https://crates.io/crates/quote
-[syn-docs]: https://docs.rs/syn/1.0/syn/struct.DeriveInput.html
+[syn-docs]: https://docs.rs/syn/2.0/syn/struct.DeriveInput.html
 [quote-docs]: https://docs.rs/quote
 [decl]: #declarative-macros-with-macro_rules-for-general-metaprogramming