diff --git a/Cargo.lock b/Cargo.lock
index 470529d..1d7d73f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -520,9 +520,9 @@ checksum = "c3ac9f8b63eca6fd385229b3675f6cc0dc5c8a5c8a54a59d4f52ffd670d87b0c"
 
 [[package]]
 name = "bytemuck"
-version = "1.20.0"
+version = "1.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b37c88a63ffd85d15b406896cc343916d7cf57838a847b3a6f2ca5d39a5695a"
+checksum = "ef657dfab802224e671f5818e9a4935f9b1957ed18e58292690cc39e7a4092a3"
 dependencies = [
  "bytemuck_derive",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index a94aa4f..52c3520 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ wgpu = "23"
 glyphon = { git = "https://github.com/hecrj/glyphon.git", rev = "09712a70df7431e9a3b1ac1bbd4fb634096cb3b4" }
 # glyphon = "0.5"
 log = "0.4"
-bytemuck = { version = "1.5", features = ["derive"] }
+bytemuck = { version = "1.21", features = ["derive"] }
 env_logger = "0.11"
 futures = "0.3"
 euclid = "0.22"