diff --git a/substrate/Cargo.lock b/substrate/Cargo.lock
index ba80103c17..cc6b80221b 100644
--- a/substrate/Cargo.lock
+++ b/substrate/Cargo.lock
@@ -2989,9 +2989,9 @@ dependencies = [
 
 [[package]]
 name = "ip_network"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09b746553d2f4a1ca26fab939943ddfb217a091f34f53571620a8e3d30691303"
+checksum = "aa2f047c0a98b2f299aa5d6d7088443570faae494e9ae1305e48be000c9e0eb1"
 
 [[package]]
 name = "ipconfig"
@@ -11024,8 +11024,8 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f559b464de2e2bdabcac6a210d12e9b5a5973c251e102c44c585c71d51bd78e"
 dependencies = [
- "cfg-if 0.1.10",
- "rand 0.6.5",
+ "cfg-if 1.0.0",
+ "rand 0.8.4",
  "static_assertions",
 ]
 
diff --git a/substrate/client/authority-discovery/Cargo.toml b/substrate/client/authority-discovery/Cargo.toml
index fd94e71ceb..ac9f0cdb18 100644
--- a/substrate/client/authority-discovery/Cargo.toml
+++ b/substrate/client/authority-discovery/Cargo.toml
@@ -22,7 +22,7 @@ codec = { package = "parity-scale-codec", default-features = false, version = "2
 derive_more = "0.99.16"
 futures = "0.3.9"
 futures-timer = "3.0.1"
-ip_network = "0.4.0"
+ip_network = "0.4.1"
 libp2p = { version = "0.40.0", default-features = false, features = ["kad"] }
 log = "0.4.8"
 prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.10.0-dev" }
diff --git a/substrate/client/network/Cargo.toml b/substrate/client/network/Cargo.toml
index 4f3ea4e939..1a77431b4b 100644
--- a/substrate/client/network/Cargo.toml
+++ b/substrate/client/network/Cargo.toml
@@ -33,7 +33,7 @@ futures = "0.3.9"
 futures-timer = "3.0.2"
 asynchronous-codec = "0.5"
 hex = "0.4.0"
-ip_network = "0.4.0"
+ip_network = "0.4.1"
 linked-hash-map = "0.5.4"
 linked_hash_set = "0.1.3"
 lru = "0.7.0"