diff --git a/Cargo.lock b/Cargo.lock
index f8da8ce..df56f13 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -43,9 +43,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.119"
+version = "3.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "872831b642d1a07999a962a351ed35b955ea2cfc8f3862091e2a240a84f17297"
+checksum = "e6275cddf4610d1775e6d1fe9469b2e77d0f39fd98fb7450901b821e0c53649f"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/crates/hotspots-rs/Cargo.toml b/crates/hotspots-rs/Cargo.toml
index 4d1a6b0..7a98266 100644
--- a/crates/hotspots-rs/Cargo.toml
+++ b/crates/hotspots-rs/Cargo.toml
@@ -12,7 +12,7 @@ categories = ["development-tools"]
 [dependencies]
 hotspots = { path = "../hotspots", version = "0.1.0" }
 proc-macro2 = { version = "1", default-features = false, features = ["span-locations"] }
-syn = { version = "2", default-features = false, features = ["full", "parsing", "printing", "clone-impls", "extra-traits"] }
+syn = { version = "3", default-features = false, features = ["full", "parsing", "printing", "clone-impls", "extra-traits"] }
 
 [lints]
 workspace = true