diff --git a/flake.lock b/flake.lock
index af893ca..63b1c53 100644
--- a/flake.lock
+++ b/flake.lock
@@ -16,11 +16,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1680584903,
-        "narHash": "sha256-uraq+D3jcLzw/UVk0xMHcnfILfIMa0DLrtAEq2nNlxU=",
+        "lastModified": 1681177078,
+        "narHash": "sha256-ZNIjBDou2GOabcpctiQykEQVkI8BDwk7TyvlWlI4myE=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "65d3f6a3970cd46bef5eedfd458300f72c56b3c5",
+        "rev": "0c9f468ff00576577d83f5019a66c557ede5acf6",
         "type": "github"
       },
       "original": {
@@ -66,12 +66,15 @@
       }
     },
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1678901627,
-        "narHash": "sha256-U02riOqrKKzwjsxc/400XnElV+UtPUQWpANPlyazjH0=",
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "93a2b84fc4b70d9e089d029deacc3583435c2ed6",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
         "type": "github"
       },
       "original": {
@@ -103,11 +106,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1682347030,
-        "narHash": "sha256-HYpAMGhF82mEaozCPz7FrHRCMJK5rOGA9Ed/kyszgmY=",
+        "lastModified": 1682741954,
+        "narHash": "sha256-RPZxzRu8XU0YD2WeYUFYzJy5yAvWUsxkuK+zWw+6WVk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8dd0f0a459b206fc4209570f6b7ce44ae66f264e",
+        "rev": "373e9eb4c42b2fc0611d794de5ea715a35d72393",
         "type": "github"
       },
       "original": {
@@ -148,11 +151,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1680981441,
-        "narHash": "sha256-Tqr2mCVssUVp1ZXXMpgYs9+ZonaWrZGPGltJz94FYi4=",
+        "lastModified": 1681413034,
+        "narHash": "sha256-/t7OjNQcNkeWeSq/CFLYVBfm+IEnkjoSm9iKvArnUUI=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "2144d9ddcb550d6dce64a2b44facdc8c5ea2e28a",
+        "rev": "d3de8f69ca88fb6f8b09e5b598be5ac98d28ede5",
         "type": "github"
       },
       "original": {
@@ -194,6 +197,21 @@
         "repo": "rust-overlay",
         "type": "github"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/nix/tests/lanzaboote.nix b/nix/tests/lanzaboote.nix
index eca724d..94b5afb 100644
--- a/nix/tests/lanzaboote.nix
+++ b/nix/tests/lanzaboote.nix
@@ -54,7 +54,7 @@ let
           return f'/boot/EFI/nixos/{store_dir}-{filename}.efi'
 
       machine.start()
-      bootspec = json.loads(machine.succeed("cat /run/current-system/boot.json")).get('v1')
+      bootspec = json.loads(machine.succeed("cat /run/current-system/boot.json")).get('org.nixos.bootspec.v1')
       assert bootspec is not None, "Unsupported bootspec version!"
       src_path = ${path.src}
       dst_path = ${path.dst}
diff --git a/rust/tool/Cargo.lock b/rust/tool/Cargo.lock
index 38687b2..01870a9 100644
--- a/rust/tool/Cargo.lock
+++ b/rust/tool/Cargo.lock
@@ -17,7 +17,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e579a7752471abc2a8268df8b20005e3eadd975f585398f17efcfd8d4927371"
 dependencies = [
- "anstyle 1.0.0",
+ "anstyle",
  "anstyle-parse",
  "anstyle-query",
  "anstyle-wincon",
@@ -26,12 +26,6 @@ dependencies = [
  "utf8parse",
 ]
 
-[[package]]
-name = "anstyle"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23ea9e81bd02e310c216d080f6223c179012256e5151c41db88d12c88a1684d2"
-
 [[package]]
 name = "anstyle"
 version = "1.0.0"
@@ -62,7 +56,7 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4bcd8291a340dd8ac70e18878bc4501dd7b4ff970cfa21c207d36ece51ea88fd"
 dependencies = [
- "anstyle 1.0.0",
+ "anstyle",
  "windows-sys 0.48.0",
 ]
 
@@ -78,7 +72,7 @@ version = "2.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "86d6b683edf8d1119fe420a94f8a7e389239666aa72e65495d91c00462510151"
 dependencies = [
- "anstyle 1.0.0",
+ "anstyle",
  "bstr",
  "doc-comment",
  "predicates",
@@ -122,7 +116,8 @@ dependencies = [
 [[package]]
 name = "bootspec"
 version = "0.1.0"
-source = "git+https://github.com/DeterminateSystems/bootspec#cc4a01a1589d9bc80059854e0f44b69b836a3fe2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92fa1287819c2a8fbfd14c066941f41dc529fcd2b59b3a3aaced1650e88d1d44"
 dependencies = [
  "serde",
  "serde_json",
@@ -190,7 +185,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84080e799e54cff944f4b4a4b0e71630b0e0443b25b985175c7dddc1a859b749"
 dependencies = [
  "anstream",
- "anstyle 1.0.0",
+ "anstyle",
  "bitflags",
  "clap_lex",
  "strsim",
@@ -205,7 +200,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.13",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -232,15 +227,15 @@ checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.5"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"
+checksum = "3e4c1eaa2012c47becbbad2ab175484c2a84d1185b566fb2cc5b8707343dfe58"
 dependencies = [
  "libc",
 ]
@@ -257,9 +252,9 @@ dependencies = [
 
 [[package]]
 name = "cxx"
-version = "1.0.93"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9c00419335c41018365ddf7e4d5f1c12ee3659ddcf3e01974650ba1de73d038"
+checksum = "f61f1b6389c3fe1c316bf8a4dccc90a38208354b330925bce1f74a6c4756eb93"
 dependencies = [
  "cc",
  "cxxbridge-flags",
@@ -269,9 +264,9 @@ dependencies = [
 
 [[package]]
 name = "cxx-build"
-version = "1.0.93"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb8307ad413a98fff033c8545ecf133e3257747b3bae935e7602aab8aa92d4ca"
+checksum = "12cee708e8962df2aeb38f594aae5d827c022b6460ac71a7a3e2c3c2aae5a07b"
 dependencies = [
  "cc",
  "codespan-reporting",
@@ -279,24 +274,24 @@ dependencies = [
  "proc-macro2",
  "quote",
  "scratch",
- "syn 2.0.13",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.93"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "edc52e2eb08915cb12596d29d55f0b5384f00d697a646dbd269b6ecb0fbd9d31"
+checksum = "7944172ae7e4068c533afbb984114a56c46e9ccddda550499caa222902c7f7bb"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.93"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "631569015d0d8d54e6c241733f944042623ab6df7bc3be7466874b05fcdb1c5f"
+checksum = "2345488264226bf682893e25de0769f3360aac9957980ec49361b083ddaa5bc5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.13",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -333,17 +328,6 @@ version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 
-[[package]]
-name = "errno"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
-dependencies = [
- "errno-dragonfly",
- "libc",
- "winapi",
-]
-
 [[package]]
 name = "errno"
 version = "0.3.1"
@@ -398,9 +382,9 @@ dependencies = [
 
 [[package]]
 name = "generic-array"
-version = "0.14.6"
+version = "0.14.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bff49e947297f3312447abdca79f45f4738097cc82b06e72054d2223f601f1b9"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
  "typenum",
  "version_check",
@@ -408,9 +392,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.8"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
+checksum = "c85e1d9ab2eadba7e5040d4e09cbd6d072b76a557ad64e797c2cb9d4da21d7e4"
 dependencies = [
  "cfg-if",
  "libc",
@@ -451,16 +435,16 @@ checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
 [[package]]
 name = "iana-time-zone"
-version = "0.1.53"
+version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64c122667b287044802d6ce17ee2ddf13207ed924c712de9a66a5814d5b64765"
+checksum = "0722cd7114b7de04316e7ea5456a0bbb20e4adb46fd27a3697adb812cff0f37c"
 dependencies = [
  "android_system_properties",
  "core-foundation-sys",
  "iana-time-zone-haiku",
  "js-sys",
  "wasm-bindgen",
- "winapi",
+ "windows",
 ]
 
 [[package]]
@@ -490,25 +474,25 @@ dependencies = [
 
 [[package]]
 name = "io-lifetimes"
-version = "1.0.8"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0dd6da19f25979c7270e70fa95ab371ec3b701cd0eefc47667a09785b3c59155"
+checksum = "9c66c74d2ae7e79a5a8f7ac924adbe38ee42a859c6539ad869eb51f0b52dc220"
 dependencies = [
  "hermit-abi 0.3.1",
  "libc",
- "windows-sys 0.45.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "is-terminal"
-version = "0.4.5"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8687c819457e979cc940d09cb16e42a1bf70aa6b60a549de6d3a62a0ee90c69e"
+checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
 dependencies = [
  "hermit-abi 0.3.1",
  "io-lifetimes",
- "rustix 0.36.10",
- "windows-sys 0.45.0",
+ "rustix",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -562,9 +546,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.140"
+version = "0.2.142"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
+checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
 
 [[package]]
 name = "link-cplusplus"
@@ -577,15 +561,9 @@ dependencies = [
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.1.4"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
-
-[[package]]
-name = "linux-raw-sys"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d59d8c75012853d2e872fb56bc8a2e53718e2cafe1a4c823143141c6d90c322f"
+checksum = "9b085a4f2cde5781fc4b1717f2e86c62f5cda49de7ba99a7c2eae02b61c9064c"
 
 [[package]]
 name = "log"
@@ -653,11 +631,11 @@ checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
 [[package]]
 name = "predicates"
-version = "3.0.1"
+version = "3.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ba7d6ead3e3966038f68caa9fc1f860185d95a793180bbcfe0d0da47b3961ed"
+checksum = "09963355b9f467184c04017ced4a2ba2d75cbcb4e7462690d388233253d4b1a9"
 dependencies = [
- "anstyle 0.3.5",
+ "anstyle",
  "difflib",
  "itertools",
  "predicates-core",
@@ -753,30 +731,16 @@ checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
 
 [[package]]
 name = "rustix"
-version = "0.36.10"
+version = "0.37.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fe885c3a125aa45213b68cc1472a49880cb5923dc23f522ad2791b882228778"
+checksum = "f79bef90eb6d984c72722595b5b1348ab39275a5e5123faca6863bf07d75a4e0"
 dependencies = [
  "bitflags",
- "errno 0.2.8",
+ "errno",
  "io-lifetimes",
  "libc",
- "linux-raw-sys 0.1.4",
- "windows-sys 0.45.0",
-]
-
-[[package]]
-name = "rustix"
-version = "0.37.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2aae838e49b3d63e9274e1c01833cc8139d3fec468c3b84688c628f44b1ae11d"
-dependencies = [
- "bitflags",
- "errno 0.3.1",
- "io-lifetimes",
- "libc",
- "linux-raw-sys 0.3.1",
- "windows-sys 0.45.0",
+ "linux-raw-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -837,7 +801,7 @@ checksum = "291a097c63d8497e00160b166a967a4a79c64f3facdd01cbd7502231688d77df"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.13",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -900,9 +864,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.13"
+version = "2.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c9da457c5285ac1f936ebd076af6dac17a61cfe7826f2076b4d015cf47bc8ec"
+checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -918,7 +882,7 @@ dependencies = [
  "cfg-if",
  "fastrand",
  "redox_syscall 0.3.5",
- "rustix 0.37.7",
+ "rustix",
  "windows-sys 0.45.0",
 ]
 
@@ -1103,6 +1067,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
+dependencies = [
+ "windows-targets 0.48.0",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.45.0"
diff --git a/rust/tool/Cargo.toml b/rust/tool/Cargo.toml
index 83a6427..294191c 100644
--- a/rust/tool/Cargo.toml
+++ b/rust/tool/Cargo.toml
@@ -17,8 +17,7 @@ nix = { version = "0.26.2", default-features = false, features = [ "fs" ] }
 serde = { version = "1.0.160", features = ["derive"] }
 serde_json = "1.0.96"
 tempfile = "3.5.0"
-# TODO: wait for a upstream release and pin it.
-bootspec = { git = "https://github.com/DeterminateSystems/bootspec" }
+bootspec = "0.1.0"
 walkdir = "2.3.3"
 time = "0.3.20"
 sha2 = "0.10.6"
diff --git a/rust/tool/src/esp.rs b/rust/tool/src/esp.rs
index 9e50e64..440c280 100644
--- a/rust/tool/src/esp.rs
+++ b/rust/tool/src/esp.rs
@@ -71,7 +71,7 @@ pub struct EspGenerationPaths {
 
 impl EspGenerationPaths {
     pub fn new(esp_paths: &EspPaths, generation: &Generation) -> Result<Self> {
-        let bootspec = &generation.spec.bootspec;
+        let bootspec = &generation.spec.bootspec.bootspec;
 
         Ok(Self {
             kernel: esp_paths
diff --git a/rust/tool/src/generation.rs b/rust/tool/src/generation.rs
index d5c5b5e..db0b9d5 100644
--- a/rust/tool/src/generation.rs
+++ b/rust/tool/src/generation.rs
@@ -4,8 +4,9 @@ use std::os::unix::fs::MetadataExt;
 use std::path::{Path, PathBuf};
 
 use anyhow::{anyhow, Context, Result};
-use bootspec::generation::Generation as BootspecGeneration;
+use bootspec::BootSpec;
 use bootspec::BootJson;
+use bootspec::generation::Generation as BootspecGeneration;
 use bootspec::SpecialisationName;
 use time::Date;
 
@@ -15,7 +16,7 @@ use time::Date;
 /// easy if/when we have to do it.
 #[derive(Debug, Clone)]
 pub struct ExtendedBootJson {
-    pub bootspec: BootJson,
+    pub bootspec: BootSpec,
 }
 
 /// A system configuration.
@@ -41,14 +42,16 @@ pub struct Generation {
 impl Generation {
     pub fn from_link(link: &GenerationLink) -> Result<Self> {
         let bootspec_path = link.path.join("boot.json");
-        let generation: BootspecGeneration = serde_json::from_slice(
+        let boot_json: BootJson = serde_json::from_slice(
             &fs::read(bootspec_path).context("Failed to read bootspec file")?,
         )
         .context("Failed to parse bootspec json")?;
 
-        let bootspec: BootJson = generation
-            .try_into()
-            .map_err(|err: &'static str| anyhow!(err))?;
+        // TODO: replace me when https://github.com/DeterminateSystems/bootspec/pull/109 lands.
+        let bootspec: BootSpec = match boot_json.generation {
+            BootspecGeneration::V1(bootspec) => bootspec,
+            _ => return Err(anyhow!("Unsupported bootspec schema"))
+        };
 
         Ok(Self {
             version: link.version,
@@ -58,7 +61,7 @@ impl Generation {
         })
     }
 
-    pub fn specialise(&self, name: &SpecialisationName, bootspec: &BootJson) -> Result<Self> {
+    pub fn specialise(&self, name: &SpecialisationName, bootspec: &BootSpec) -> Result<Self> {
         Ok(Self {
             version: self.version,
             build_time: self.build_time,
diff --git a/rust/tool/src/install.rs b/rust/tool/src/install.rs
index b133b5b..a827d42 100644
--- a/rust/tool/src/install.rs
+++ b/rust/tool/src/install.rs
@@ -208,7 +208,7 @@ impl Installer {
             build_generation_artifacts(self, &generation, generation_artifacts)
                 .context("Failed to build generation artifacts.")?;
 
-            for (name, bootspec) in &generation.spec.bootspec.specialisation {
+            for (name, bootspec) in &generation.spec.bootspec.specialisations {
                 let specialised_generation = generation.specialise(name, bootspec)?;
 
                 build_generation_artifacts(self, &specialised_generation, generation_artifacts)
@@ -233,7 +233,7 @@ impl Installer {
     ) -> Result<()> {
         let tempdir = &generation_artifacts.tempdir;
 
-        let bootspec = &generation.spec.bootspec;
+        let bootspec = &generation.spec.bootspec.bootspec;
 
         let esp_gen_paths = EspGenerationPaths::new(&self.esp_paths, generation)?;
         self.gc_roots.extend(esp_gen_paths.to_iter());
@@ -279,7 +279,7 @@ impl Installer {
     ) -> Result<()> {
         let tempdir = &generation_artifacts.tempdir;
 
-        let bootspec = &generation.spec.bootspec;
+        let bootspec = &generation.spec.bootspec.bootspec;
 
         let esp_gen_paths = EspGenerationPaths::new(&self.esp_paths, generation)?;
 
diff --git a/rust/tool/src/os_release.rs b/rust/tool/src/os_release.rs
index 1d05917..845b948 100644
--- a/rust/tool/src/os_release.rs
+++ b/rust/tool/src/os_release.rs
@@ -26,7 +26,7 @@ impl OsRelease {
         // Because the ID field here does not have the same meaning as in a real os-release file,
         // it is fine to use a dummy value.
         map.insert("ID".into(), String::from("lanza"));
-        map.insert("PRETTY_NAME".into(), generation.spec.bootspec.label.clone());
+        map.insert("PRETTY_NAME".into(), generation.spec.bootspec.bootspec.label.clone());
         map.insert("VERSION_ID".into(), generation.describe());
 
         Ok(Self(map))
diff --git a/rust/tool/tests/common/mod.rs b/rust/tool/tests/common/mod.rs
index 7980d8e..e650a79 100644
--- a/rust/tool/tests/common/mod.rs
+++ b/rust/tool/tests/common/mod.rs
@@ -39,7 +39,7 @@ pub fn setup_generation_link_from_toplevel(
     version: u64,
 ) -> Result<PathBuf> {
     let bootspec = json!({
-        "v1": {
+        "org.nixos.bootspec.v1": {
           "init": format!("init-v{}", version),
           "initrd": toplevel.join("initrd"),
           "kernel": toplevel.join("kernel"),
@@ -56,11 +56,8 @@ pub fn setup_generation_link_from_toplevel(
           "label": "LanzaOS",
           "toplevel": toplevel,
           "system": "x86_64-linux",
-          "specialisation": {},
-          "extensions": {
-            "lanzaboote": { "osRelease": toplevel.join("os-release") }
-          }
-        }
+        },
+        "org.nixos-community.lanzaboote": { "osRelease": toplevel.join("os-release") }
     });
 
     let generation_link_path = profiles_directory.join(format!("system-{}-link", version));