diff --git a/Cargo.lock b/Cargo.lock
index 9c253a76b802..f9487ad2b171 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2337,9 +2337,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
+checksum = "2bfc52cbddcfd745bf1740338492bb0bd83d76c67b445f91c5fb29fae29ecaa1"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -2347,9 +2347,9 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
+checksum = "d2acedae88d38235936c3922476b10fced7b2b68136f5e3c03c2d5be348a1115"
 
 [[package]]
 name = "futures-executor"
@@ -2365,9 +2365,9 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
+checksum = "93a66fc6d035a26a3ae255a6d2bca35eda63ae4c5512bef54449113f7a1228e5"
 
 [[package]]
 name = "futures-lite"
@@ -2386,9 +2386,9 @@ dependencies = [
 
 [[package]]
 name = "futures-macro"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
+checksum = "0db9cce532b0eae2ccf2766ab246f114b56b9cf6d445e00c2549fbc100ca045d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2408,15 +2408,15 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
+checksum = "ca0bae1fe9752cf7fd9b0064c674ae63f97b37bc714d745cbde0afb7ec4e6765"
 
 [[package]]
 name = "futures-task"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
+checksum = "842fc63b931f4056a24d59de13fb1272134ce261816e063e634ad0c15cdc5306"
 
 [[package]]
 name = "futures-timer"
@@ -2426,9 +2426,9 @@ checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
 
 [[package]]
 name = "futures-util"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
+checksum = "f0828a5471e340229c11c77ca80017937ce3c58cb788a17e5f1c2d5c485a9577"
 dependencies = [
  "futures-channel",
  "futures-core",
diff --git a/node/subsystem-util/src/determine_new_blocks.rs b/node/subsystem-util/src/determine_new_blocks.rs
index c2b54160cc86..aad1625798c2 100644
--- a/node/subsystem-util/src/determine_new_blocks.rs
+++ b/node/subsystem-util/src/determine_new_blocks.rs
@@ -124,7 +124,7 @@ where
 						Ok(Ok(h)) => h,
 					}
 				})
-				.for_each(|x| requests.push(x));
+				.for_each(|x| requests.push_back(x));
 
 			let batch_headers: Vec<_> =
 				requests.flat_map(|x: Option<Header>| stream::iter(x)).collect().await;
diff --git a/node/zombienet-backchannel/Cargo.toml b/node/zombienet-backchannel/Cargo.toml
index a7b01c51a1eb..4104fe6fb99b 100644
--- a/node/zombienet-backchannel/Cargo.toml
+++ b/node/zombienet-backchannel/Cargo.toml
@@ -12,7 +12,7 @@ publish = false
 tokio = { version = "1.19.2", default-features = false, features = ["macros", "net", "rt-multi-thread", "sync"] }
 url = "2.0.0"
 tokio-tungstenite = "0.17"
-futures-util = "0.3.21"
+futures-util = "0.3.23"
 lazy_static = "1.4.0"
 parity-scale-codec = { version = "3.1.5", features = ["derive"] }
 reqwest = "0.11"