diff --git a/Cargo.lock b/Cargo.lock
index d48a154..2c64c55 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2071,7 +2071,7 @@ dependencies = [
  "chrono",
  "hex",
  "serde",
- "serde_jcs 0.2.0",
+ "serde_jcs",
  "serde_json",
  "sha2 0.11.0",
  "thiserror 2.0.19",
@@ -2144,7 +2144,7 @@ dependencies = [
  "hmac 0.13.0",
  "rand 0.10.2",
  "serde",
- "serde_jcs 0.2.0",
+ "serde_jcs",
  "serde_json",
  "sha2 0.11.0",
  "tracing",
@@ -2311,7 +2311,7 @@ dependencies = [
  "metrics-exporter-prometheus",
  "reqwest",
  "serde",
- "serde_jcs 0.1.0",
+ "serde_jcs",
  "serde_json",
  "serial_test",
  "sha2 0.10.9",
@@ -2440,7 +2440,7 @@ dependencies = [
  "chrono",
  "hex",
  "serde",
- "serde_jcs 0.2.0",
+ "serde_jcs",
  "serde_json",
  "sha2 0.11.0",
  "thiserror 2.0.19",
@@ -2541,7 +2541,7 @@ dependencies = [
  "flate2",
  "hex",
  "serde",
- "serde_jcs 0.2.0",
+ "serde_jcs",
  "serde_json",
  "sha2 0.11.0",
  "uuid",
@@ -5449,17 +5449,6 @@ dependencies = [
  "syn 3.0.3",
 ]
 
-[[package]]
-name = "serde_jcs"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cacecf649bc1a7c5f0e299cc813977c6a78116abda2b93b1ee01735b71ead9a8"
-dependencies = [
- "ryu-js",
- "serde",
- "serde_json",
-]
-
 [[package]]
 name = "serde_jcs"
 version = "0.2.0"
diff --git a/Cargo.toml b/Cargo.toml
index 2ccc52e..955f36c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -79,7 +79,7 @@ futures      = "0.3"
 serde        = { version = "1", features = ["derive"] }
 serde_json   = "1"
 serde_with   = "3"
-serde_jcs    = "0.1"  # RFC 8785 JSON Canonicalisation — audit-chain hashing
+serde_jcs    = "0.2"  # RFC 8785 JSON Canonicalisation — audit-chain hashing
 
 # Database (sqlx lives in dpp-dal — not declared at workspace level)