diff --git a/Cargo.lock b/Cargo.lock
index 81000c6053f..331ca5dad54 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -468,7 +468,7 @@ checksum = "6e0c28dcc82d7c8ead5cb13beb15405b57b8546e93215673ff8ca0349a028107"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -899,7 +899,7 @@ dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1228,7 +1228,7 @@ checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1276,7 +1276,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim 0.11.1",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1298,7 +1298,7 @@ checksum = "d336a2a514f6ccccaa3e09b02d41d35330c07ddf03a62165fcec10bb561c7806"
 dependencies = [
  "darling_core 0.20.10",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1330,7 +1330,7 @@ checksum = "d65d7ce8132b7c0e54497a4d9a55a1c2a0912a0d786cf894472ba818fba45762"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1341,7 +1341,7 @@ checksum = "62d671cc41a825ebabc75757b62d3d168c577f9149b2d49ece1dad1f72119d25"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1405,7 +1405,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "regex",
- "syn 2.0.60",
+ "syn 2.0.85",
  "termcolor",
  "toml",
  "walkdir",
@@ -1613,7 +1613,7 @@ dependencies = [
  "prettier-please",
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -1799,7 +1799,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -2401,7 +2401,7 @@ dependencies = [
  "subxt-metadata",
  "subxt-signer",
  "subxt-test-macro",
- "syn 2.0.60",
+ "syn 2.0.85",
  "test-runtime",
  "tokio",
  "tracing",
@@ -3148,7 +3148,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3257,7 +3257,7 @@ dependencies = [
  "polkavm-common 0.8.0",
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3269,7 +3269,7 @@ dependencies = [
  "polkavm-common 0.9.0",
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3279,7 +3279,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "15e85319a0d5129dc9f021c62607e0804f5fb777a05cdda44d750ac0732def66"
 dependencies = [
  "polkavm-derive-impl 0.8.0",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3289,7 +3289,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ba81f7b5faac81e528eb6158a6f3c9e0bb1008e0ffa19653bc8dea925ecb429"
 dependencies = [
  "polkavm-derive-impl 0.9.0",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3331,7 +3331,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22020dfcf177fcc7bf5deaf7440af371400c67c0de14c399938d8ed4fb4645d3"
 dependencies = [
  "proc-macro2",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3559,7 +3559,7 @@ checksum = "5fddb4f8d99b0a2ebafc65a87a69a7b9875e4b1ae1f00db265d300ef7f28bccc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -3947,7 +3947,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "scale-info",
- "syn 2.0.60",
+ "syn 2.0.85",
  "thiserror",
 ]
 
@@ -4157,7 +4157,7 @@ checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -4551,7 +4551,7 @@ checksum = "48d09fa0a5f7299fb81ee25ae3853d26200f7a348148aed6de76be905c007dbe"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -4683,7 +4683,7 @@ dependencies = [
  "proc-macro-crate 3.1.0",
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -4976,7 +4976,7 @@ dependencies = [
  "subxt",
  "subxt-codegen",
  "subxt-metadata",
- "syn 2.0.60",
+ "syn 2.0.85",
  "thiserror",
  "tokio",
 ]
@@ -4996,7 +4996,7 @@ dependencies = [
  "scale-info",
  "scale-typegen",
  "subxt-metadata",
- "syn 2.0.60",
+ "syn 2.0.85",
  "thiserror",
  "tokio",
 ]
@@ -5069,7 +5069,7 @@ dependencies = [
  "quote",
  "scale-typegen",
  "subxt-codegen",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -5123,7 +5123,7 @@ name = "subxt-test-macro"
 version = "0.37.0"
 dependencies = [
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -5139,9 +5139,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.60"
+version = "2.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "909518bc7b1c9b779f1bbf07f2929d35af9f0f37e47c6e9ef7f9dddc1e1821f3"
+checksum = "5023162dfcd14ef8f32034d8bcd4cc5ddc61ef7a247c024a33e24e1f24d21b56"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -5220,7 +5220,7 @@ checksum = "a4558b58466b9ad7ca0f102865eccc95938dca1a74a856f2b57b6629050da261"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -5291,7 +5291,7 @@ checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -5446,7 +5446,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -5824,7 +5824,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
  "wasm-bindgen-shared",
 ]
 
@@ -5858,7 +5858,7 @@ checksum = "afc340c74d9005395cf9dd098506f7f44e38f2b4a21c6aaacf9a105ea5e1e836"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -6396,7 +6396,7 @@ checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
 
 [[package]]
@@ -6416,5 +6416,5 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.60",
+ "syn 2.0.85",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 9f75698d182..a35bf73ad7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -102,7 +102,7 @@ scale-typegen = "0.8.0"
 scale-typegen-description = "0.8.0"
 serde = { version = "1.0.209", default-features = false, features = ["derive"] }
 serde_json = { version = "1.0.127", default-features = false }
-syn = { version = "2.0.15", features = ["full", "extra-traits"] }
+syn = { version = "2.0.85", features = ["full", "extra-traits"] }
 thiserror = "1.0.63"
 tokio = { version = "1.39", default-features = false }
 tracing = { version = "0.1.40", default-features = false }