diff --git a/Cargo.lock b/Cargo.lock
index 7fbc7dd6c9c..2d9213bdd8a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -758,7 +758,7 @@ checksum = "0e97ce7de6cf12de5d7226c73f5ba9811622f4db3a5b91b55c53e987e5f91cba"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -769,7 +769,7 @@ checksum = "a564d521dd56509c4c47480d00b80ee55f7e385ae48db5744c67ad50c92d2ebf"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -904,7 +904,7 @@ dependencies = [
  "regex",
  "rustc-hash",
  "shlex",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -1880,7 +1880,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -2848,7 +2848,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -3653,7 +3653,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "regex",
- "syn 2.0.23",
+ "syn 2.0.25",
  "termcolor",
  "walkdir",
 ]
@@ -3848,7 +3848,7 @@ checksum = "5e9a1f9f7d83e59740248a6e14ecf93929ade55027844dfcea78beafccc15745"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -3859,7 +3859,7 @@ checksum = "48016319042fb7c87b78d2993084a831793a897a5cd1a2a67cab9d1eeb4b7d76"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -4008,7 +4008,7 @@ dependencies = [
  "fs-err",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -4280,7 +4280,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -4399,7 +4399,7 @@ dependencies = [
  "proc-macro-warning",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -4411,7 +4411,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -4421,7 +4421,7 @@ source = "git+https://github.com/paritytech/substrate?branch=master#29ef4775d673
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -4590,7 +4590,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -6441,7 +6441,7 @@ dependencies = [
  "macro_magic_core",
  "macro_magic_macros",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -6454,7 +6454,7 @@ dependencies = [
  "macro_magic_core_macros",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -6465,7 +6465,7 @@ checksum = "93d7d9e6e234c040dafc745c7592738d56a03ad04b1fa04ab60821deb597466a"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -6476,7 +6476,7 @@ checksum = "ffd19f13cfd2bfbd83692adfef8c244fe5109b3eb822a1fb4e0a6253b406cd81"
 dependencies = [
  "macro_magic_core",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -7616,7 +7616,7 @@ source = "git+https://github.com/paritytech/substrate?branch=master#29ef4775d673
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -8294,7 +8294,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -10680,7 +10680,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ceca8aaf45b5c46ec7ed39fff75f57290368c1846d33d24a122ca81416ab058"
 dependencies = [
  "proc-macro2",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -10756,7 +10756,7 @@ checksum = "70550716265d1ec349c41f70dd4f964b4fd88394efe4405f0c1da679c4799a07"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -11751,7 +11751,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -12669,7 +12669,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -12995,7 +12995,7 @@ checksum = "b69b106b68bc8054f0e974e70d19984040f8a5cf9215ca82626ea4853f82c4b9"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -13303,7 +13303,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -13539,7 +13539,7 @@ source = "git+https://github.com/paritytech/substrate?branch=master#29ef4775d673
 dependencies = [
  "quote",
  "sp-core-hashing",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -13558,7 +13558,7 @@ source = "git+https://github.com/paritytech/substrate?branch=master#29ef4775d673
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -13765,7 +13765,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -13948,7 +13948,7 @@ dependencies = [
  "parity-scale-codec",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -14272,7 +14272,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -14321,9 +14321,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.23"
+version = "2.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59fb7d6d8281a51045d62b8eb3a7d1ce347b76f312af50cd3dc0af39c87c1737"
+checksum = "15e3fc8c0c74267e2df136e5e5fb656a464158aa57624053375eb9c8c6e25ae2"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -14435,7 +14435,7 @@ checksum = "463fe12d7993d3b327787537ce8dd4dfa058de32fc2b195ef3cde03dc4771e8f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -14616,7 +14616,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -14826,7 +14826,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -16445,7 +16445,7 @@ dependencies = [
  "Inflector",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.25",
 ]
 
 [[package]]
diff --git a/pallets/parachain-system/proc-macro/Cargo.toml b/pallets/parachain-system/proc-macro/Cargo.toml
index acf2d9808e4..ea5952e469c 100644
--- a/pallets/parachain-system/proc-macro/Cargo.toml
+++ b/pallets/parachain-system/proc-macro/Cargo.toml
@@ -9,7 +9,7 @@ description = "Proc macros provided by the parachain-system pallet"
 proc-macro = true
 
 [dependencies]
-syn = "2.0.23"
+syn = "2.0.25"
 proc-macro2 = "1.0.63"
 quote = "1.0.29"
 proc-macro-crate = "1.3.1"