diff --git a/Cargo.lock b/Cargo.lock
index 9b2108b7..dc7cc164 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3331,9 +3331,9 @@ dependencies = [
 
 [[package]]
 name = "serial_test"
-version = "0.5.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0bccbcf40c8938196944a3da0e133e031a33f4d6b72db3bda3cc556e361905d"
+checksum = "e5bcc41d18f7a1d50525d080fd3e953be87c4f9f1a974f3c21798ca00d54ec15"
 dependencies = [
  "lazy_static",
  "parking_lot",
@@ -3342,12 +3342,14 @@ dependencies = [
 
 [[package]]
 name = "serial_test_derive"
-version = "0.5.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2acd6defeddb41eb60bb468f8825d0cfd0c2a76bc03bfd235b6a1dc4f6a1ad5"
+checksum = "2881bccd7d60fb32dfa3d7b3136385312f8ad75e2674aab2852867a09790cae8"
 dependencies = [
+ "proc-macro-error",
  "proc-macro2",
  "quote",
+ "rustversion",
  "syn",
 ]
 
diff --git a/ethers-etherscan/Cargo.toml b/ethers-etherscan/Cargo.toml
index 33b05f99..6775eb9a 100644
--- a/ethers-etherscan/Cargo.toml
+++ b/ethers-etherscan/Cargo.toml
@@ -24,7 +24,7 @@ thiserror = "1.0.29"
 
 [dev-dependencies]
 tokio = { version = "1.5", features = ["macros", "rt-multi-thread", "time"] }
-serial_test = "0.5.1"
+serial_test = "0.6.0"
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/ethers-middleware/Cargo.toml b/ethers-middleware/Cargo.toml
index 0982550e..946710ab 100644
--- a/ethers-middleware/Cargo.toml
+++ b/ethers-middleware/Cargo.toml
@@ -43,7 +43,7 @@ rand = { version = "0.8.5", default-features = false }
 ethers-providers = { version = "^0.6.0", path = "../ethers-providers", default-features = false, features = ["ws", "rustls"] }
 once_cell = "1.8.0"
 ethers-solc = { version = "^0.3.0", path = "../ethers-solc", default-features = false }
-serial_test = "0.5.1"
+serial_test = "0.6.0"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
 tokio = { version = "1.5", default-features = false, features = ["rt", "macros", "time"] }