diff --git a/Cargo.lock b/Cargo.lock
index f1477869..e9e7107b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1747,7 +1747,7 @@ dependencies = [
  "serde_json",
  "symphony",
  "test-case",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "time",
  "tokio",
  "tracing",
diff --git a/Cargo.toml b/Cargo.toml
index 0e097f9a..ebf49df5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -67,7 +67,7 @@ regex = { version = "1.11" }
 serde = { version = "1.0.228", optional = true }
 serde_json = { version = "1.0.150", optional = true }
 symphony = { version = "0.1.5", optional = true }
-thiserror = { version = "1.0.69", optional = true }
+thiserror = { version = "2.0.18", optional = true }
 tokio = { version = "1.45.1", default-features = false, optional = true }
 tracing = { version = "0.1", default-features = false, features = ["log", "std"] }
 uriparse = { version = "0.6" }