diff --git a/Cargo.lock b/Cargo.lock
index c26ee8d..87eb44b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -121,7 +121,7 @@ checksum = "680998035259dcfcafe653688bf2aa6d3e2dc05e98be6ab46afb089dc84f1df8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.119",
 ]
 
 [[package]]
@@ -145,7 +145,7 @@ version = "0.2.4"
 dependencies = [
  "percore",
  "quote",
- "syn",
+ "syn 3.0.3",
 ]
 
 [[package]]
@@ -213,6 +213,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "3.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53e9bae58849f64dfa4f5d5ae372c8341f7305f82a3868709269343628b659a3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "thiserror"
 version = "2.0.18"
@@ -230,7 +241,7 @@ checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.119",
 ]
 
 [[package]]
@@ -256,5 +267,5 @@ checksum = "0fe976fb70c78cd64cccfe3a6fc142244e8a77b70959b30faf9d0ac37ee228eb"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.119",
 ]
diff --git a/percore-derive/Cargo.toml b/percore-derive/Cargo.toml
index f6186b2..0501c35 100644
--- a/percore-derive/Cargo.toml
+++ b/percore-derive/Cargo.toml
@@ -14,7 +14,7 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.45"
-syn = { version = "2.0.118", features = ["full"] }
+syn = { version = "3.0.3", features = ["full"] }
 
 [dev-dependencies]
 percore = { version = "=0.2.4", features = ["derive"], path = ".." }