diff --git a/Cargo.lock b/Cargo.lock
index 256626e..1d7c672 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -110,9 +110,9 @@ dependencies = [
 
 [[package]]
 name = "rusty_alloc"
-version = "2.0.5"
+version = "2.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59f4e6793d58ca76f11c5138939761fbabb6978b1fe404e1c097fa6bd45e706"
+checksum = "e982cf3e815fd9412c64562a89a71c9c10855bd034e262b8a754cfcf975ece3b"
 dependencies = [
  "libc",
  "portable-atomic",
@@ -130,11 +130,11 @@ dependencies = [
 
 [[package]]
 name = "rusty_alloc-api"
-version = "2.0.5"
+version = "2.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66795d559e48d97cc9e5df15471c98ffd6a95870110fec8ca49ad22318e546c0"
+checksum = "5406f30b98310bbbe2237d551b13269f45ca6f529ff1266b44a35759ddf05155"
 dependencies = [
- "rusty_alloc 2.0.5",
+ "rusty_alloc 2.2.2",
 ]
 
 [[package]]
@@ -178,7 +178,7 @@ dependencies = [
 name = "rzstd-alloc"
 version = "0.2.5"
 dependencies = [
- "rusty_alloc-api 2.0.5",
+ "rusty_alloc-api 2.2.2",
 ]
 
 [[package]]
diff --git a/bare-metal/esp32s3/Cargo.toml b/bare-metal/esp32s3/Cargo.toml
index 3a8e422..7814cef 100644
--- a/bare-metal/esp32s3/Cargo.toml
+++ b/bare-metal/esp32s3/Cargo.toml
@@ -1,6 +1,11 @@
 [package]
 name = "s3zstd"
 version = "0.1.0"
+# Firmware for an ESP32-S3 devkit, not a registry crate. It is outside the
+# workspace so release-plz cannot reach it either way, but without this the
+# portfolio tooling counts it among the crates this repository publishes --
+# and it has never been on crates.io.
+publish = false
 edition = "2021"
 
 # On-board proof for rusty_zstd's bare-metal support: an ESP32-S3 (Xtensa LX7,
@@ -36,8 +41,8 @@ esp-alloc = { version = "0.11.0", features = ["esp32s3", "internal-heap-stats"],
 
 # The core crate carries `prim::fixed::Region` and `good_region_size`; the api
 # crate carries the `GlobalAlloc`. Both pinned, both default-features off.
-rusty_alloc = { version = "=2.0.5", default-features = false, optional = true }
-rusty_alloc-api = { version = "=2.0.5", default-features = false, optional = true }
+rusty_alloc = { version = "=2.2.2", default-features = false, optional = true }
+rusty_alloc-api = { version = "=2.2.2", default-features = false, optional = true }
 
 [profile.release]
 opt-level = "s"
diff --git a/crates/rzstd-alloc/Cargo.toml b/crates/rzstd-alloc/Cargo.toml
index a7dc4b7..a5172dc 100644
--- a/crates/rzstd-alloc/Cargo.toml
+++ b/crates/rzstd-alloc/Cargo.toml
@@ -11,7 +11,7 @@ description = "rusty_alloc seam for rusty_zstd deliverables — never depend on
 publish = false
 
 [dependencies]
-rusty_alloc-api = { version = "=2.0.5" }
+rusty_alloc-api = { version = "=2.2.2" }
 
 [lints]
 workspace = true