diff --git a/src/lib.rs b/src/lib.rs
index e7d88a0..a534854 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -236,7 +236,7 @@
 //!   dynamic library libproc_macro from rustc toolchain.
 
 // Syn types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/syn/0.15.18")]
+#![doc(html_root_url = "https://docs.rs/syn/0.15.19")]
 #![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
 #![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
 // Ignored clippy lints.