diff --git a/Cargo.lock b/Cargo.lock
index 064fa836..2ecac3b7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3192,9 +3192,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.50"
+version = "1.0.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
+checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index 38aaf4ff..d6978a42 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -41,7 +41,7 @@ cargo_metadata = { version = "0.15.3", optional = true }
 # eip712 feature enabled dependencies
 convert_case = { version = "0.6.0", optional = true }
 syn = { version = "1.0.107", optional = true }
-proc-macro2 = { version = "1.0.50", optional = true }
+proc-macro2 = { version = "1.0.51", optional = true }
 num_enum = "0.5.9"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]