diff --git a/Cargo.lock b/Cargo.lock
index 75f1475..3a46704 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5193,7 +5193,7 @@ dependencies = [
  "sha2",
  "sqlx",
  "tempfile",
- "thiserror 1.0.69",
+ "thiserror 2.0.20",
  "tokio",
  "tokio-stream",
  "tracing",
@@ -5235,7 +5235,7 @@ dependencies = [
  "serde_json",
  "sha2",
  "tempfile",
- "thiserror 1.0.69",
+ "thiserror 2.0.20",
  "tracing",
  "xxhash-rust",
 ]
@@ -5281,7 +5281,7 @@ dependencies = [
  "serde_json",
  "sha2",
  "tempfile",
- "thiserror 1.0.69",
+ "thiserror 2.0.20",
  "tracing",
  "umc-core",
  "xxhash-rust",
diff --git a/Cargo.toml b/Cargo.toml
index 4915a03..9d3d2f3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,7 +46,7 @@ prost            = "0.13"
 zip              = { version = "2.1", default-features = false, features = ["deflate"] }
 
 # Logging & errors
-thiserror        = "1.0"
+thiserror        = "2.0"
 tracing          = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
diff --git a/umc-api/Cargo.toml b/umc-api/Cargo.toml
index d8efed2..17d1617 100644
--- a/umc-api/Cargo.toml
+++ b/umc-api/Cargo.toml
@@ -51,7 +51,7 @@ mime             = "0.3"
 tempfile         = "3.13"
 
 # ── Erreurs & Config ─────────────────────────────────────────────────────────
-thiserror        = "1.0"
+thiserror        = "2.0"
 anyhow           = "1.0"
 dotenvy          = "0.15"
 once_cell        = "1.20"