diff --git a/Cargo.lock b/Cargo.lock
index fcabc6595..7fb15de47 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -432,15 +432,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "atomic-polyfill"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cf2bce30dfe09ef0bfaef228b9d414faaf7e563035494d7fe092dba54b300f4"
-dependencies = [
- "critical-section",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -1498,12 +1489,6 @@ dependencies = [
  "itertools 0.13.0",
 ]
 
-[[package]]
-name = "critical-section"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "790eea4361631c5e7d22598ecd5723ff611904e3344ce8720784c93e3d83d40b"
-
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.15"
@@ -2392,7 +2377,7 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7223ae2d2f179b803433d9c830478527e92b8117eab39460edae7f1614d9fb73"
 dependencies = [
- "heapless 0.8.0",
+ "heapless",
  "serde",
 ]
 
@@ -4188,15 +4173,6 @@ dependencies = [
  "zerocopy",
 ]
 
-[[package]]
-name = "hash32"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0c35f58762feb77d74ebe43bdbc3210f09be9fe6742234d573bacc26ed92b67"
-dependencies = [
- "byteorder",
-]
-
 [[package]]
 name = "hash32"
 version = "0.3.1"
@@ -4277,27 +4253,13 @@ dependencies = [
  "http 1.4.0",
 ]
 
-[[package]]
-name = "heapless"
-version = "0.7.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdc6457c0eb62c71aac4bc17216026d8410337c4126773b9c5daba343f17964f"
-dependencies = [
- "atomic-polyfill",
- "hash32 0.2.1",
- "rustc_version",
- "serde",
- "spin",
- "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",
+ "hash32",
  "stable_deref_trait",
 ]
 
@@ -6114,7 +6076,6 @@ dependencies = [
  "cobs",
  "embedded-io 0.4.0",
  "embedded-io 0.6.1",
- "heapless 0.7.17",
  "serde",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 44ea4f823..d17695f2b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ opentelemetry = "0.31.0"
 opentelemetry-otlp = { version = "0.31.0", features = ["grpc-tonic",  "metrics"] }
 opentelemetry-resource-detectors = "0.10.0"
 opentelemetry_sdk = { version = "0.31.0", features = ["rt-tokio"] }
-postcard = { version = "1.1.3", features = ["use-std"] }
+postcard = { version = "1.1.3", default-features = false, features = ["use-std"] }
 rand = "0.9"
 regex = "1"
 reqwest = { version = "0.12", features = ["json", "gzip"] }