diff --git a/Cargo.lock b/Cargo.lock
index feb721e6092cf..9e2ec45dfcfab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6248,7 +6248,7 @@ dependencies = [
  "frame-system",
  "pallet-balances",
  "parity-scale-codec",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "scale-info",
  "sp-core",
  "sp-io",
@@ -6272,7 +6272,7 @@ dependencies = [
  "pallet-staking-reward-curve",
  "pallet-timestamp",
  "parity-scale-codec",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "scale-info",
  "serde",
  "sp-application-crypto",
@@ -8064,7 +8064,7 @@ dependencies = [
  "parity-scale-codec",
  "parking_lot 0.11.2",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "retain_mut",
  "sc-block-builder",
  "sc-client-api",
@@ -9797,7 +9797,7 @@ dependencies = [
  "parity-scale-codec",
  "parking_lot 0.11.2",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "schnorrkel",
  "serde",
  "sp-core",
@@ -11152,7 +11152,7 @@ version = "1.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ee73e6e4924fe940354b8d4d98cad5231175d615cd855b758adc658c0aac6a0"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if 0.1.10",
  "rand 0.8.4",
  "static_assertions",
 ]
diff --git a/client/consensus/babe/Cargo.toml b/client/consensus/babe/Cargo.toml
index 76ec6a25879f8..fb75c8dc97aac 100644
--- a/client/consensus/babe/Cargo.toml
+++ b/client/consensus/babe/Cargo.toml
@@ -60,5 +60,5 @@ sc-network = { version = "0.10.0-dev", path = "../../network" }
 sc-network-test = { version = "0.8.0", path = "../../network/test" }
 substrate-test-runtime-client = { version = "2.0.0", path = "../../../test-utils/runtime/client" }
 sc-block-builder = { version = "0.10.0-dev", path = "../../block-builder" }
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.0"
 tempfile = "3.1.0"
diff --git a/frame/society/Cargo.toml b/frame/society/Cargo.toml
index 2787453d49d3e..68f30c1fb352a 100644
--- a/frame/society/Cargo.toml
+++ b/frame/society/Cargo.toml
@@ -19,7 +19,7 @@ sp-runtime = { version = "5.0.0", default-features = false, path = "../../primit
 sp-std = { version = "4.0.0", default-features = false, path = "../../primitives/std" }
 frame-support = { version = "4.0.0-dev", default-features = false, path = "../support" }
 frame-system = { version = "4.0.0-dev", default-features = false, path = "../system" }
-rand_chacha = { version = "0.2", default-features = false }
+rand_chacha = { version = "0.3", default-features = false }
 
 [dev-dependencies]
 sp-core = { version = "5.0.0", path = "../../primitives/core" }
diff --git a/frame/staking/Cargo.toml b/frame/staking/Cargo.toml
index 363ffe4428fb4..977df87ca20e2 100644
--- a/frame/staking/Cargo.toml
+++ b/frame/staking/Cargo.toml
@@ -34,7 +34,7 @@ log = { version = "0.4.14", default-features = false }
 
 # Optional imports for benchmarking
 frame-benchmarking = { version = "4.0.0-dev", default-features = false, path = "../benchmarking", optional = true }
-rand_chacha = { version = "0.2", default-features = false, optional = true }
+rand_chacha = { version = "0.3", default-features = false, optional = true }
 
 [dev-dependencies]
 sp-tracing = { version = "4.0.0", path = "../../primitives/tracing" }
@@ -47,7 +47,7 @@ pallet-bags-list = { version = "4.0.0-dev", features = ["runtime-benchmarks"], p
 substrate-test-utils = { version = "4.0.0-dev", path = "../../test-utils" }
 frame-benchmarking = { version = "4.0.0-dev", path = "../benchmarking" }
 frame-election-provider-support = { version = "4.0.0-dev", path = "../election-provider-support" }
-rand_chacha = { version = "0.2" }
+rand_chacha = { version = "0.3" }
 
 [features]
 default = ["std"]
diff --git a/primitives/keystore/Cargo.toml b/primitives/keystore/Cargo.toml
index 26748d3227d6f..3b4105bd54c33 100644
--- a/primitives/keystore/Cargo.toml
+++ b/primitives/keystore/Cargo.toml
@@ -27,7 +27,7 @@ sp-externalities = { version = "0.11.0", path = "../externalities", default-feat
 
 [dev-dependencies]
 rand = "0.7.2"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.0"
 
 [features]
 default = ["std"]