diff --git a/Cargo.lock b/Cargo.lock
index c515e67d3..baaca0ce2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -23,7 +23,7 @@ dependencies = [
  "pin-project-lite",
  "smallvec 1.7.0",
  "tokio",
- "tokio-util",
+ "tokio-util 0.6.9",
 ]
 
 [[package]]
@@ -40,7 +40,7 @@ dependencies = [
  "memchr",
  "pin-project-lite",
  "tokio",
- "tokio-util",
+ "tokio-util 0.6.9",
 ]
 
 [[package]]
@@ -226,7 +226,7 @@ dependencies = [
  "log 0.4.14",
  "openssl",
  "tokio-openssl",
- "tokio-util",
+ "tokio-util 0.6.9",
 ]
 
 [[package]]
@@ -1928,9 +1928,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.7"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fd819562fcebdac5afc5c113c3ec36f902840b70fd4fc458799c8ce4607ae55"
+checksum = "91fc23aa11be92976ef4729127f1a74adf36d8436f7816b185d18df956790833"
 dependencies = [
  "bytes 1.1.0",
  "fnv",
@@ -1941,7 +1941,7 @@ dependencies = [
  "indexmap",
  "slab",
  "tokio",
- "tokio-util",
+ "tokio-util 0.7.2",
  "tracing",
 ]
 
@@ -2421,7 +2421,7 @@ dependencies = [
  "log 0.4.14",
  "tokio",
  "tokio-stream",
- "tokio-util",
+ "tokio-util 0.6.9",
  "unicase 2.6.0",
 ]
 
@@ -5269,6 +5269,20 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f988a1a1adc2fb21f9c12aa96441da33a1728193ae0b95d2be22dbd17fcb4e5c"
+dependencies = [
+ "bytes 1.1.0",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+ "tracing",
+]
+
 [[package]]
 name = "toml"
 version = "0.5.8"
@@ -5711,7 +5725,7 @@ dependencies = [
  "tiny-keccak 2.0.2",
  "tokio",
  "tokio-stream",
- "tokio-util",
+ "tokio-util 0.6.9",
  "url 2.2.2",
  "web3-async-native-tls",
 ]
@@ -5747,7 +5761,7 @@ dependencies = [
  "tiny-keccak 2.0.2",
  "tokio",
  "tokio-stream",
- "tokio-util",
+ "tokio-util 0.6.9",
  "url 2.2.2",
  "web3-async-native-tls",
 ]