diff --git a/rlp-derive/Cargo.toml b/rlp-derive/Cargo.toml
index a1785d7b7..7f739908d 100644
--- a/rlp-derive/Cargo.toml
+++ b/rlp-derive/Cargo.toml
@@ -12,7 +12,7 @@ rust-version = "1.56.1"
 proc-macro = true
 
 [dependencies]
-syn = "1.0.14"
+syn = "2.0.63"
 quote = "1.0.2"
 proc-macro2 = "1.0.8"