diff --git a/Cargo.lock b/Cargo.lock
index 2479ef9b79f46c..87f03fd67d349e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5039,7 +5039,7 @@ dependencies = [
  "min-max-heap",
  "num_enum",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "raptorq",
  "rayon",
  "rustc_version 0.4.0",
@@ -5350,7 +5350,7 @@ dependencies = [
  "num-traits",
  "num_cpus",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "regex",
  "rustc_version 0.4.0",
@@ -5454,7 +5454,7 @@ dependencies = [
  "num_enum",
  "prost 0.11.0",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "reed-solomon-erasure",
  "rocksdb",
@@ -6143,7 +6143,7 @@ dependencies = [
  "once_cell",
  "ouroboros",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "regex",
  "rustc_version 0.4.0",
@@ -6260,7 +6260,7 @@ dependencies = [
  "pbkdf2 0.11.0",
  "qstring",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rustc_version 0.4.0",
  "rustversion",
  "serde",
@@ -6548,7 +6548,7 @@ dependencies = [
  "quinn-proto",
  "quinn-udp",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "rustls 0.20.6",
  "solana-logger 1.15.0",
diff --git a/core/Cargo.toml b/core/Cargo.toml
index b0f6e6ac69996b..9234d879a3bd30 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -32,7 +32,7 @@ lru = "0.7.7"
 min-max-heap = "1.3.0"
 num_enum = "0.5.7"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.3"
 serde = "1.0.144"
 serde_derive = "1.0.103"
diff --git a/gossip/Cargo.toml b/gossip/Cargo.toml
index 04c7c84ae95a18..d9e561cabe4278 100644
--- a/gossip/Cargo.toml
+++ b/gossip/Cargo.toml
@@ -22,7 +22,7 @@ lru = "0.7.7"
 matches = "0.1.9"
 num-traits = "0.2"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.3"
 serde = "1.0.144"
 serde_bytes = "0.11"
diff --git a/ledger/Cargo.toml b/ledger/Cargo.toml
index 8c5ee3eaa117f4..2203fed2f8aa2b 100644
--- a/ledger/Cargo.toml
+++ b/ledger/Cargo.toml
@@ -29,7 +29,7 @@ num_cpus = "1.13.1"
 num_enum = "0.5.7"
 prost = "0.11.0"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.3"
 reed-solomon-erasure = { version = "6.0.0", features = ["simd-accel"] }
 serde = "1.0.144"
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 609e57b23330d2..b1663548684404 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -71,7 +71,7 @@ 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 = "=1.15.0" }
 static_assertions = "1.1.0"
 
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 660b46a6f8db7c..bde224bf89b517 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -64,7 +64,7 @@ num_enum = "0.5.7"
 pbkdf2 = { version = "0.11.0", 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 = "0.3.1", optional = true }
 rustversion = "1.0.9"
 serde = "1.0.144"
 serde_bytes = "0.11"
diff --git a/tpu-client/Cargo.toml b/tpu-client/Cargo.toml
index d2dba4af8df56e..83d6a45dcf8995 100644
--- a/tpu-client/Cargo.toml
+++ b/tpu-client/Cargo.toml
@@ -40,7 +40,7 @@ tokio = { version = "1", features = ["full"] }
 
 [dev-dependencies]
 crossbeam-channel = "0.5"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 solana-logger = { path = "../logger", version = "=1.15.0" }
 solana-perf = { path = "../perf", version = "=1.15.0" }