diff --git a/Cargo.lock b/Cargo.lock
index 4414ad6cb5..6fe25245f0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -32,7 +32,7 @@ dependencies = [
  "light-merkle-tree-reference",
  "light-zero-copy",
  "num-bigint 0.4.6",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-sdk",
  "solana-security-txt",
  "zerocopy 0.8.25",
@@ -65,7 +65,7 @@ dependencies = [
  "light-verifier",
  "litesvm",
  "num-bigint 0.4.6",
- "rand 0.8.5",
+ "rand 0.9.1",
  "serial_test",
  "solana-sdk",
  "tokio",
@@ -1239,7 +1239,7 @@ dependencies = [
  "light-prover-client",
  "light-sdk",
  "light-test-utils",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-account",
  "solana-account-decoder-client-types",
  "solana-address-lookup-table-interface",
@@ -1313,7 +1313,7 @@ dependencies = [
  "light-system-program-anchor",
  "light-test-utils",
  "light-verifier",
- "rand 0.8.5",
+ "rand 0.9.1",
  "serial_test",
  "solana-sdk",
  "spl-token",
@@ -2113,7 +2113,7 @@ dependencies = [
  "num-bigint 0.4.6",
  "photon-api",
  "prometheus",
- "rand 0.8.5",
+ "rand 0.9.1",
  "reqwest 0.12.19",
  "scopeguard",
  "serde",
@@ -2158,7 +2158,7 @@ dependencies = [
  "light-sparse-merkle-tree",
  "num-bigint 0.4.6",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.9.1",
  "reqwest 0.12.19",
  "serde",
  "serde_json",
@@ -3234,7 +3234,7 @@ version = "0.2.0"
 dependencies = [
  "borsh 0.10.4",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-account-info",
  "solana-program-error",
  "solana-pubkey",
@@ -3260,7 +3260,7 @@ dependencies = [
  "light-verifier",
  "light-zero-copy",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "serial_test",
  "solana-account-info",
  "solana-msg",
@@ -3281,7 +3281,7 @@ dependencies = [
  "light-hasher",
  "num-bigint 0.4.6",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-program-error",
  "thiserror 2.0.12",
 ]
@@ -3318,7 +3318,7 @@ dependencies = [
  "num-bigint 0.4.6",
  "num-traits",
  "photon-api",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-account",
  "solana-account-decoder-client-types",
  "solana-address-lookup-table-interface",
@@ -3358,7 +3358,7 @@ dependencies = [
  "light-zero-copy",
  "num-bigint 0.4.6",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-program-error",
  "solana-pubkey",
  "thiserror 2.0.12",
@@ -3378,7 +3378,7 @@ dependencies = [
  "light-system-program-anchor",
  "light-zero-copy",
  "num-bigint 0.4.6",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-sdk",
  "solana-security-txt",
  "spl-token",
@@ -3401,7 +3401,7 @@ dependencies = [
  "num-bigint 0.4.6",
  "num-traits",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-program-error",
  "thiserror 2.0.12",
  "tokio",
@@ -3416,7 +3416,7 @@ dependencies = [
  "light-hasher",
  "num-bigint 0.4.6",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-program-error",
  "thiserror 2.0.12",
 ]
@@ -3432,7 +3432,7 @@ dependencies = [
  "light-poseidon 0.3.0",
  "num-bigint 0.4.6",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "sha2 0.10.8",
  "sha3",
  "solana-program-error",
@@ -3454,7 +3454,7 @@ dependencies = [
  "light-hasher",
  "num-bigint 0.4.6",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.9.1",
  "thiserror 2.0.12",
 ]
 
@@ -3470,7 +3470,7 @@ dependencies = [
  "num-bigint 0.4.6",
  "num-traits",
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-program-error",
  "thiserror 2.0.12",
 ]
@@ -3509,7 +3509,7 @@ dependencies = [
  "light-indexed-array",
  "num-bigint 0.4.6",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.9.1",
  "thiserror 2.0.12",
 ]
 
@@ -3565,7 +3565,7 @@ dependencies = [
  "num-bigint 0.4.6",
  "num-traits",
  "photon-api",
- "rand 0.8.5",
+ "rand 0.9.1",
  "reqwest 0.12.19",
  "solana-account",
  "solana-banks-client",
@@ -3665,7 +3665,7 @@ dependencies = [
  "light-merkle-tree-reference",
  "num-bigint 0.4.6",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.9.1",
  "thiserror 2.0.12",
 ]
 
@@ -3700,7 +3700,7 @@ dependencies = [
  "light-zero-copy",
  "pinocchio",
  "pinocchio-system",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-pubkey",
  "solana-security-txt",
  "thiserror 2.0.12",
@@ -3736,7 +3736,7 @@ dependencies = [
  "log",
  "num-bigint 0.4.6",
  "num-traits",
- "rand 0.8.5",
+ "rand 0.9.1",
  "reqwest 0.12.19",
  "solana-banks-client",
  "solana-sdk",
@@ -3762,7 +3762,7 @@ name = "light-zero-copy"
 version = "0.2.0"
 dependencies = [
  "pinocchio",
- "rand 0.8.5",
+ "rand 0.9.1",
  "solana-program-error",
  "thiserror 2.0.12",
  "zerocopy 0.8.25",
@@ -8838,7 +8838,7 @@ dependencies = [
  "light-system-program-anchor",
  "light-test-utils",
  "light-verifier",
- "rand 0.8.5",
+ "rand 0.9.1",
  "serial_test",
  "solana-sdk",
  "tokio",
@@ -8866,7 +8866,7 @@ dependencies = [
  "light-system-program-anchor",
  "light-test-utils",
  "light-verifier",
- "rand 0.8.5",
+ "rand 0.9.1",
  "serial_test",
  "solana-sdk",
  "tokio",
@@ -10372,7 +10372,7 @@ dependencies = [
  "light-test-utils",
  "num-bigint 0.4.6",
  "quote",
- "rand 0.8.5",
+ "rand 0.9.1",
  "serde_json",
  "sha2 0.10.8",
  "solana-client",
diff --git a/Cargo.toml b/Cargo.toml
index cd00d86c91..2e8c69fca0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -206,4 +206,4 @@ serial_test = "3.2.0"
 governor = "0.8.0"
 
 # Random
-rand = "0.8.5"
+rand = "0.9.1"