diff --git a/concatsql_macro/Cargo.toml b/concatsql_macro/Cargo.toml
index 59d2dee..7e7db91 100644
--- a/concatsql_macro/Cargo.toml
+++ b/concatsql_macro/Cargo.toml
@@ -16,7 +16,7 @@ proc-macro = true
 [dependencies]
 proc-macro2 = "1.0"
 proc-macro-error = "1.0"
-syn = { version = "2.0", features = ["full", "extra-traits"] }
+syn = { version = "3.0", features = ["full", "extra-traits"] }
 quote = "1.0"
 nom = "8.0.0"