diff --git a/backend/Cargo.lock b/backend/Cargo.lock
index 1ebc58c..a2b32fb 100644
--- a/backend/Cargo.lock
+++ b/backend/Cargo.lock
@@ -337,7 +337,7 @@ dependencies = [
  "futures-util",
  "hex",
  "http",
- "rand 0.8.6",
+ "rand 0.9.4",
  "reqwest",
  "rust_decimal",
  "serde",
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index 0976c78..a09c501 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -13,7 +13,7 @@ chrono = { version = "0.4", features = ["serde"] }
 futures-util = "0.3"
 hex = "0.4"
 http = "1"
-rand = "0.8"
+rand = "0.9"
 reqwest = { version = "0.12", default-features = false, features = ["rustls-tls", "http2", "stream"] }
 rust_decimal = "1"
 serde = { version = "1", features = ["derive"] }