diff --git a/Cargo.lock b/Cargo.lock
index 18db67a0..46f8c454 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2477,9 +2477,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.6.5"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5143d049e85af7fbc36f5454d990e62c2df705b3589f123b71f441b6b59f443f"
+checksum = "940a12c99365c31ea8dd9ba04ec1be183ffe4920102bb7122c2f515437601e8e"
 dependencies = [
  "bytes",
  "futures-core",
diff --git a/ethers-providers/Cargo.toml b/ethers-providers/Cargo.toml
index b2f8dabf..cde5b005 100644
--- a/ethers-providers/Cargo.toml
+++ b/ethers-providers/Cargo.toml
@@ -39,7 +39,7 @@ tracing-futures = { version = "0.2.5", default-features = false, features = ["st
 # tokio
 tokio = { version = "1.4", default-features = false, optional = true }
 tokio-tungstenite = { version = "0.13.0", default-features = false, features = ["connect", "tls"], optional = true }
-tokio-util = { version = "0.6.5", default-features = false, features = ["io"], optional = true }
+tokio-util = { version = "0.6.6", default-features = false, features = ["io"], optional = true }
 bytes = { version  = "1.0.1", default-features = false, optional = true }
 
 [dev-dependencies]