diff --git a/Cargo.lock b/Cargo.lock
index 78338021..73e2fb70 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3273,9 +3273,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.83"
+version = "1.0.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23a1dfb999630e338648c83e91c59a4e9fb7620f520c3194b6b89e276f2f1959"
+checksum = "ecb2e6da8ee5eb9a61068762a32fa9619cc591ceb055b3687f4cd4051ec2e06b"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index d4efb3ba..68918f20 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -36,7 +36,7 @@ cargo_metadata = { version = "0.14.1", optional = true }
 
 # eip712 feature enabled dependencies
 convert_case = { version = "0.4.0", optional = true }
-syn = { version = "1.0.83", optional = true }
+syn = { version = "1.0.84", optional = true }
 quote = { version = "1.0.9", optional = true }
 proc-macro2 = { version = "1.0.33", optional = true }