diff --git a/derive/Cargo.toml b/derive/Cargo.toml
index 62804d5..1e466af 100644
--- a/derive/Cargo.toml
+++ b/derive/Cargo.toml
@@ -14,5 +14,5 @@ proc-macro = true
 [dependencies]
 proc-macro2 = "1.0"
 quote = "1.0"
-syn = { version = "2.0", features = ["full", "extra-traits"] }
+syn = { version = "3.0", features = ["full", "extra-traits"] }