diff --git a/Cargo.lock b/Cargo.lock
index 46f20f33..87168304 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2595,9 +2595,9 @@ dependencies = [
 
 [[package]]
 name = "serde-aux"
-version = "2.3.0"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "907c320ef8f45ce134b28ca9567ec58ec0d51dcae4e1ffe7ee0cc15517243810"
+checksum = "93abf9799c576f004252b2a05168d58527fb7c54de12e94b4d12fe3475ffad24"
 dependencies = [
  "serde",
  "serde_json",
diff --git a/ethers-middleware/Cargo.toml b/ethers-middleware/Cargo.toml
index f9743e50..97408aba 100644
--- a/ethers-middleware/Cargo.toml
+++ b/ethers-middleware/Cargo.toml
@@ -27,7 +27,7 @@ tracing = { version = "0.1.29", default-features = false }
 tracing-futures = { version = "0.2.5", default-features = false }
 
 # for gas oracles
-serde-aux = { version = "2.3.0", default-features = false }
+serde-aux = { version = "3.0.1", default-features = false }
 reqwest = { version = "0.11.6", default-features = false, features = ["json", "rustls-tls"] }
 url = { version = "2.2.2", default-features = false }