diff --git a/Cargo.lock b/Cargo.lock
index 52929d0..e0e0158 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -479,6 +479,17 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
 
+[[package]]
+name = "chacha20"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f8d983286843e49675a4b7a2d174efe136dc93a18d69130dd18198a6c167601"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "rand_core 0.10.1",
+]
+
 [[package]]
 name = "chrono"
 version = "0.4.45"
@@ -571,6 +582,15 @@ version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 
+[[package]]
+name = "cpufeatures"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b2a41393f66f16b0823bb79094d54ac5fbd34ab292ddafb9a0456ac9f87d201"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "criterion"
 version = "0.8.2"
@@ -898,7 +918,7 @@ name = "gb-optimizer"
 version = "0.1.0"
 dependencies = [
  "chrono",
- "rand 0.9.4",
+ "rand 0.10.1",
  "serde",
  "serde_json",
  "uuid",
@@ -959,7 +979,7 @@ version = "0.1.0"
 dependencies = [
  "chrono",
  "gb-data",
- "rand 0.9.4",
+ "rand 0.10.1",
  "rust_decimal",
  "rust_decimal_macros",
  "serde",
@@ -1005,6 +1025,7 @@ dependencies = [
  "cfg-if",
  "libc",
  "r-efi",
+ "rand_core 0.10.1",
  "wasip2",
  "wasip3",
 ]
@@ -1918,6 +1939,17 @@ dependencies = [
  "rand_core 0.9.5",
 ]
 
+[[package]]
+name = "rand"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2e8e8bcc7961af1fdac401278c6a831614941f6164ee3bf4ce61b7edb162207"
+dependencies = [
+ "chacha20",
+ "getrandom 0.4.1",
+ "rand_core 0.10.1",
+]
+
 [[package]]
 name = "rand_chacha"
 version = "0.3.1"
@@ -1956,6 +1988,12 @@ dependencies = [
  "getrandom 0.3.4",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63b8176103e19a2643978565ca18b50549f6101881c443590420e4dc998a3c69"
+
 [[package]]
 name = "rayon"
 version = "1.12.0"
diff --git a/Cargo.toml b/Cargo.toml
index bbbf958..a93b223 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ parking_lot = "0.12"
 crossbeam-channel = "0.5"
 num-traits = "0.2"
 rust_decimal = { version = "1.33", features = ["serde"] }
-rand = "0.9"
+rand = "0.10"
 pyo3 = { version = "0.29", features = ["extension-module"] }
 
 [profile.dev]