diff --git a/Cargo.lock b/Cargo.lock
index 20bff28a3eefab..1fa269043a38ed 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4666,7 +4666,7 @@ dependencies = [
  "lru",
  "matches",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "raptorq",
  "rayon",
  "reqwest",
@@ -4908,7 +4908,7 @@ dependencies = [
  "num-traits",
  "num_cpus",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "rustc_version 0.4.0",
  "serde",
@@ -5007,7 +5007,7 @@ dependencies = [
  "num_cpus",
  "prost",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "reed-solomon-erasure",
  "rocksdb",
@@ -5592,7 +5592,7 @@ dependencies = [
  "num_cpus",
  "ouroboros",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "regex",
  "rustc_version 0.4.0",
@@ -5653,7 +5653,7 @@ dependencies = [
  "pbkdf2 0.10.1",
  "qstring",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rustc_version 0.4.0",
  "rustversion",
  "serde",
diff --git a/core/Cargo.toml b/core/Cargo.toml
index b0651c20d6c9d1..d939d524180cb3 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -28,7 +28,7 @@ itertools = "0.10.3"
 log = "0.4.14"
 lru = "0.7.3"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.1"
 retain_mut = "0.1.7"
 serde = "1.0.136"
diff --git a/gossip/Cargo.toml b/gossip/Cargo.toml
index 02e3b22f058f35..dccb49f90da563 100644
--- a/gossip/Cargo.toml
+++ b/gossip/Cargo.toml
@@ -22,7 +22,7 @@ lru = "0.7.3"
 matches = "0.1.9"
 num-traits = "0.2"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.1"
 serde = "1.0.136"
 serde_bytes = "0.11"
diff --git a/ledger/Cargo.toml b/ledger/Cargo.toml
index ea91f8a395c792..2efde07171f760 100644
--- a/ledger/Cargo.toml
+++ b/ledger/Cargo.toml
@@ -26,7 +26,7 @@ num-traits = "0.2"
 num_cpus = "1.13.1"
 prost = "0.9.0"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.1"
 serde = "1.0.136"
 serde_bytes = "0.11.5"
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index bd34b8e11d580e..8598b1a6b49e10 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -65,7 +65,7 @@ name = "solana_runtime"
 assert_matches = "1.5.0"
 ed25519-dalek = "=1.0.1"
 libsecp256k1 = "0.6.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 solana-logger = { path = "../logger", version = "=1.10.2" }
 
 [package.metadata.docs.rs]
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index b8538b4fe09128..630512c68625b1 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -63,7 +63,7 @@ num-traits = "0.2"
 pbkdf2 = { version = "0.10.1", 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 = "0.3.1", optional = true }
 rustversion = "1.0.6"
 serde = "1.0.136"
 serde_bytes = "0.11"