diff --git a/Cargo.lock b/Cargo.lock
index 75ebfc7..1c48f6d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -127,11 +127,11 @@ source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
 dependencies = [
  "cfg-if",
- "getrandom",
+ "getrandom 0.2.15",
  "once_cell",
  "serde",
  "version_check",
- "zerocopy",
+ "zerocopy 0.7.35",
 ]
 
 [[package]]
@@ -266,7 +266,7 @@ dependencies = [
  "enumflags2",
  "futures-channel",
  "futures-util",
- "rand",
+ "rand 0.8.5",
  "raw-window-handle",
  "serde",
  "serde_repr",
@@ -1732,7 +1732,19 @@ checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.3.1"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "43a49c392881ce6d5c3b8cb70f98717b7c07aabbdff06687b9030dbfbe2725f8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi 0.13.3+wasi-0.2.2",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -3136,7 +3148,7 @@ version = "0.2.20"
 source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "77957b295656769bb8ad2b6a6b09d897d94f05c41b069aede1fcdaa675eaea04"
 dependencies = [
- "zerocopy",
+ "zerocopy 0.7.35",
 ]
 
 [[package]]
@@ -3230,8 +3242,19 @@ source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
  "libc",
- "rand_chacha",
- "rand_core",
+ "rand_chacha 0.3.1",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "rand"
+version = "0.9.0"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "3779b94aeb87e8bd4e834cee3650289ee9e0d5677f976ecdb6d219e5f4f6cd94"
+dependencies = [
+ "rand_chacha 0.9.0",
+ "rand_core 0.9.0",
+ "zerocopy 0.8.14",
 ]
 
 [[package]]
@@ -3241,7 +3264,17 @@ source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.9.0"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.9.0",
 ]
 
 [[package]]
@@ -3250,7 +3283,17 @@ version = "0.6.4"
 source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.9.0"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "b08f3c9802962f7e1b25113931d94f43ed9725bebc59db9d0c3e9a23b67e15ff"
+dependencies = [
+ "getrandom 0.3.1",
+ "zerocopy 0.8.14",
 ]
 
 [[package]]
@@ -3289,7 +3332,7 @@ version = "0.5.0"
 source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "dd6f9d3d47bdd2ad6945c5015a226ec6155d0bcdfd8f7cd29f86b71f8de99d2b"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
  "libredox",
  "thiserror 2.0.11",
 ]
@@ -3390,7 +3433,7 @@ checksum = "c17fa4cb658e3583423e915b9f3acc01cceaee1860e33d59ebae66adc3a2dc0d"
 dependencies = [
  "cc",
  "cfg-if",
- "getrandom",
+ "getrandom 0.2.15",
  "libc",
  "spin",
  "untrusted",
@@ -3606,7 +3649,7 @@ dependencies = [
  "itertools 0.14.0",
  "midi-msg",
  "open",
- "rand",
+ "rand 0.9.0",
  "relative-path",
  "rfd",
  "rodio",
@@ -4267,6 +4310,15 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasi"
+version = "0.13.3+wasi-0.2.2"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "26816d2e1a4a36a2940b96c5296ce403917633dff8f3440e9b236ed6f6bacad2"
+dependencies = [
+ "wit-bindgen-rt",
+]
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.99"
@@ -5017,6 +5069,15 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.33.0"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "3268f3d866458b787f390cf61f4bbb563b922d091359f9608842999eaee3943c"
+dependencies = [
+ "bitflags 2.6.0",
+]
+
 [[package]]
 name = "write16"
 version = "1.0.0"
@@ -5162,7 +5223,7 @@ dependencies = [
  "hex",
  "nix",
  "ordered-stream",
- "rand",
+ "rand 0.8.5",
  "serde",
  "serde_repr",
  "sha1",
@@ -5307,7 +5368,16 @@ source = "registry+/~https://github.com/rust-lang/crates.io-index"
 checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
 dependencies = [
  "byteorder",
- "zerocopy-derive",
+ "zerocopy-derive 0.7.35",
+]
+
+[[package]]
+name = "zerocopy"
+version = "0.8.14"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "a367f292d93d4eab890745e75a778da40909cab4d6ff8173693812f79c4a2468"
+dependencies = [
+ "zerocopy-derive 0.8.14",
 ]
 
 [[package]]
@@ -5321,6 +5391,17 @@ dependencies = [
  "syn 2.0.92",
 ]
 
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.14"
+source = "registry+/~https://github.com/rust-lang/crates.io-index"
+checksum = "d3931cb58c62c13adec22e38686b559c86a30565e16ad6e8510a337cedc611e1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.92",
+]
+
 [[package]]
 name = "zerofrom"
 version = "0.1.5"
diff --git a/Cargo.toml b/Cargo.toml
index dd7c959..59fd420 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ midi-msg = "0.8.0"   # MIDI format
 wavers = "1.5.1"     # WAV format
 
 # -- Misc
-rand = "0.8.5"
+rand = "0.9.0"
 build-info = "0.0.39"   # For dependency listing
 walkdir = "2.5.0"
 size_format = "1.0.2"   # File sizes into string