diff --git a/divviup/rust/Cargo.lock b/divviup/rust/Cargo.lock
index 86b893c..cf04291 100644
--- a/divviup/rust/Cargo.lock
+++ b/divviup/rust/Cargo.lock
@@ -524,7 +524,7 @@ dependencies = [
  "janus_messages",
  "jni",
  "prio",
- "rand 0.8.5",
+ "rand 0.9.2",
  "thiserror 2.0.18",
 ]
 
diff --git a/divviup/rust/Cargo.toml b/divviup/rust/Cargo.toml
index ea1a801..7a299b7 100644
--- a/divviup/rust/Cargo.toml
+++ b/divviup/rust/Cargo.toml
@@ -12,5 +12,5 @@ janus_core = "0.7.107"
 janus_messages = "0.7.102"
 jni = "0.21.1"
 prio = "0.16.8"
-rand = "0.8.5"
+rand = "0.9.2"
 thiserror = "2.0.18"