diff --git a/Cargo.lock b/Cargo.lock
index 08375caff..16cd5d466 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2778,11 +2778,11 @@ checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.38"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9027b48e9d4c9175fa2218adf3557f91c1137021739951d4932f5f8268ac48aa"
+checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -4100,6 +4100,12 @@ version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1a01404663e3db436ed2746d9fefef640d868edae3cceb81c3b8d5732fda678f"
 
+[[package]]
+name = "unicode-ident"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
+
 [[package]]
 name = "unicode-normalization"
 version = "0.1.19"
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index a788cbcda..1805ef1c4 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -39,7 +39,7 @@ cargo_metadata = { version = "0.14.2", optional = true }
 # eip712 feature enabled dependencies
 convert_case = { version = "0.5.0", optional = true }
 syn = { version = "1.0.94", optional = true }
-proc-macro2 = { version = "1.0.38", optional = true }
+proc-macro2 = { version = "1.0.39", optional = true }
 
 [dev-dependencies]
 serde_json = { version = "1.0.64", default-features = false }