diff --git a/Cargo.lock b/Cargo.lock
index 3129ddce97c..02e46ca3abd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -517,7 +517,7 @@ version = "0.17.0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
  "synstructure 0.13.0",
 ]
 
@@ -790,7 +790,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1108,7 +1108,7 @@ dependencies = [
  "ident_case",
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1119,7 +1119,7 @@ checksum = "29a358ff9f12ec09c3e61fef9b5a9902623a695a46a917b07f269bff1445611a"
 dependencies = [
  "darling_core",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1176,7 +1176,7 @@ checksum = "53e0efad4403bfc52dc201159c4b842a246a14b98c64b55dfd0f2d89729dfeb8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1204,7 +1204,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1307,7 +1307,7 @@ dependencies = [
  "darling",
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1536,7 +1536,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -2734,7 +2734,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -2812,7 +2812,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -2961,7 +2961,7 @@ dependencies = [
  "phf_shared",
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -3454,7 +3454,7 @@ checksum = "5a32af5427251d2e4be14fc151eabe18abb4a7aad5efee7044da9f096c906a43"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -3583,7 +3583,7 @@ checksum = "741e124f5485c7e60c03b043f79f320bff3527f4bbf12cf3831750dc46a0ec2c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -3605,7 +3605,7 @@ checksum = "8725e1dfadb3a50f7e5ce0b1a540466f6ed3fe7a0fca2ac2b8b831d31316bd00"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -3919,9 +3919,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.27"
+version = "2.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b60f673f44a8255b9c8c657daf66a596d435f2da81a555b06dc644d080ba45e0"
+checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3948,7 +3948,7 @@ checksum = "285ba80e733fac80aa4270fbcdf83772a79b80aa35c97075320abfee4a915b06"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
  "unicode-xid",
 ]
 
@@ -4042,7 +4042,7 @@ checksum = "090198534930841fab3a5d1bb637cde49e339654e606195f8d9c76eeb081dc96"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -4270,7 +4270,7 @@ checksum = "5f4f31f56159e98206da9efd823404b79b6ef3143b4a7ab76e67b1751b25a4ab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -4491,7 +4491,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
  "wasm-bindgen-shared",
 ]
 
@@ -4525,7 +4525,7 @@ checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
diff --git a/boa_macros/Cargo.toml b/boa_macros/Cargo.toml
index 6221624ba3e..c502dfa55b1 100644
--- a/boa_macros/Cargo.toml
+++ b/boa_macros/Cargo.toml
@@ -13,6 +13,6 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.32"
-syn = { version = "2.0.27", features = ["full"] }
+syn = { version = "2.0.28", features = ["full"] }
 proc-macro2 = "1.0"
 synstructure = "0.13"