diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index c61ec9e09..b885421ff 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -970,7 +970,7 @@ dependencies = [
  "quote",
  "riverqueue",
  "serde",
- "syn 2.0.119",
+ "syn 3.0.3",
  "trybuild",
 ]
 
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index f0a30f705..dbce09c4a 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -29,7 +29,7 @@ serde = { version = "1.0.229", features = ["derive"] }
 serde_json = { version = "1.0.151", features = ["raw_value"] }
 sha2 = "0.11.0"
 sqlx = { version = "0.9.0", default-features = false, features = ["runtime-tokio"] }
-syn = { version = "2.0", features = ["full"] }
+syn = { version = "3.0", features = ["full"] }
 thiserror = "2.0.20"
 tokio = { version = "1.53.1", features = ["macros", "rt", "sync", "time"] }
 tokio-util = { version = "0.7.19", features = ["rt"] }