diff --git a/Cargo.lock b/Cargo.lock
index 49a6119..966d362 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -80,16 +80,6 @@ dependencies = [
  "stable_deref_trait",
 ]
 
-[[package]]
-name = "heapless"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
-dependencies = [
- "hash32 0.3.1",
- "stable_deref_trait",
-]
-
 [[package]]
 name = "heapless"
 version = "0.9.1"
@@ -141,11 +131,11 @@ dependencies = [
 
 [[package]]
 name = "postcard-rpc"
-version = "0.11.15"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7e1944dfb9859e440511700c442edce3eacd5862f90f5a9997d004bd3553f3b"
+checksum = "d1b0f9cc8bd8f38f5893fb7f07626b1c8722b3166ead66cfb14b5c5d5352822c"
 dependencies = [
- "heapless 0.8.0",
+ "heapless 0.9.1",
  "portable-atomic",
  "postcard",
  "postcard-schema",
diff --git a/Cargo.toml b/Cargo.toml
index 84b97b4..5305b6a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-postcard-rpc = { version = "0.11.15" }
+postcard-rpc = { version = "0.12.1" }
 heapless = { version = "0.9.1", features = ["serde"] }
 
 [dependencies.serde]