diff --git a/Cargo.lock b/Cargo.lock
index 5159ef6ca0e..18b1242287f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4480,7 +4480,7 @@ dependencies = [
  "lru",
  "matches",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "raptorq",
  "rayon",
  "reqwest",
@@ -4742,7 +4742,7 @@ dependencies = [
  "num-traits",
  "num_cpus",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "rayon",
  "rustc_version 0.4.0",
  "serde",
@@ -4837,7 +4837,7 @@ dependencies = [
  "num_cpus",
  "prost",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "rayon",
  "reed-solomon-erasure",
  "rocksdb",
@@ -5445,7 +5445,7 @@ dependencies = [
  "pbkdf2 0.9.0",
  "qstring",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.0",
  "rustc_version 0.4.0",
  "rustversion",
  "serde",
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 95477b3bc65..f546b6ea76d 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -27,7 +27,7 @@ itertools = "0.10.1"
 log = "0.4.14"
 lru = "0.6.6"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.0"
 raptorq = "1.6.4"
 rayon = "1.5.1"
 retain_mut = "0.1.3"
diff --git a/gossip/Cargo.toml b/gossip/Cargo.toml
index 80a7219ab75..f417e9d1a40 100644
--- a/gossip/Cargo.toml
+++ b/gossip/Cargo.toml
@@ -21,7 +21,7 @@ lru = "0.6.6"
 matches = "0.1.9"
 num-traits = "0.2"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.0"
 rayon = "1.5.1"
 serde = "1.0.130"
 serde_bytes = "0.11"
diff --git a/ledger/Cargo.toml b/ledger/Cargo.toml
index c96eb24f10a..05f7a67b088 100644
--- a/ledger/Cargo.toml
+++ b/ledger/Cargo.toml
@@ -24,7 +24,7 @@ log = { version = "0.4.14" }
 num_cpus = "1.13.0"
 prost = "0.8.0"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.0"
 rayon = "1.5.1"
 serde = "1.0.130"
 serde_bytes = "0.11.5"
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index b871229a266..4692b308fb3 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -64,7 +64,7 @@ num-traits = "0.2"
 pbkdf2 = { version = "0.9.0", default-features = false }
 qstring = "0.7.2"
 rand = { version = "0.7.0", optional = true }
-rand_chacha = { version = "0.2.2", optional = true }
+rand_chacha = { version = "0.3.0", optional = true }
 rustversion = "1.0.5"
 serde = "1.0.130"
 serde_bytes = "0.11"