diff --git a/Cargo.lock b/Cargo.lock
index 9777cc8b57a8cb..24a15e5ac296d4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4746,7 +4746,7 @@ dependencies = [
  "lru",
  "matches",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "raptorq",
  "rayon",
  "reqwest",
@@ -4990,7 +4990,7 @@ 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",
@@ -5085,7 +5085,7 @@ dependencies = [
  "num_cpus",
  "prost 0.9.0",
  "rand 0.7.3",
- "rand_chacha 0.2.2",
+ "rand_chacha 0.3.1",
  "rayon",
  "reed-solomon-erasure",
  "rocksdb",
@@ -5707,7 +5707,7 @@ dependencies = [
  "pbkdf2 0.9.0",
  "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 090b9795b6e3eb..d4bd5c21358ade 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -28,7 +28,7 @@ itertools = "0.10.1"
 log = "0.4.14"
 lru = "0.7.0"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 raptorq = "1.6.4"
 rayon = "1.5.1"
 retain_mut = "0.1.4"
diff --git a/gossip/Cargo.toml b/gossip/Cargo.toml
index e3d9c84ad71509..499da72664ac26 100644
--- a/gossip/Cargo.toml
+++ b/gossip/Cargo.toml
@@ -21,7 +21,7 @@ lru = "0.7.0"
 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 = "1.0.130"
 serde_bytes = "0.11"
diff --git a/ledger/Cargo.toml b/ledger/Cargo.toml
index 8e969cba9be3ea..aec6448b49772d 100644
--- a/ledger/Cargo.toml
+++ b/ledger/Cargo.toml
@@ -24,7 +24,7 @@ log = { version = "0.4.14" }
 num_cpus = "1.13.0"
 prost = "0.9.0"
 rand = "0.7.0"
-rand_chacha = "0.2.2"
+rand_chacha = "0.3.1"
 rayon = "1.5.1"
 serde = "1.0.130"
 serde_bytes = "0.11.5"
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 10c57160f2963c..21102b0e4fe37a 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 = "0.3.1", optional = true }
 rustversion = "1.0.5"
 serde = "1.0.130"
 serde_bytes = "0.11"