diff --git a/Cargo.lock b/Cargo.lock
index 1e29a13..4a0576a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2941,7 +2941,7 @@ dependencies = [
  "serdes-ai-streaming",
  "serdes-ai-tools",
  "serdes-ai-toolsets",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "wiremock",
@@ -2962,7 +2962,7 @@ dependencies = [
  "serde_json",
  "serdes-ai-agent",
  "serdes-ai-core",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tokio-util",
@@ -2989,7 +2989,7 @@ dependencies = [
  "serdes-ai-core",
  "serdes-ai-models",
  "serdes-ai-tools",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tokio-util",
@@ -3013,7 +3013,7 @@ dependencies = [
  "rstest",
  "serde",
  "serde_json",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tracing",
  "tracing-opentelemetry",
@@ -3031,7 +3031,7 @@ dependencies = [
  "rstest",
  "serde",
  "serde_json",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3051,7 +3051,7 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_yaml",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3068,7 +3068,7 @@ dependencies = [
  "rstest",
  "serde",
  "serde_json",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3099,7 +3099,7 @@ dependencies = [
  "serdes-ai-core",
  "serdes-ai-tools",
  "serdes-ai-toolsets",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3129,7 +3129,7 @@ dependencies = [
  "serdes-ai-core",
  "serdes-ai-output",
  "serdes-ai-tools",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-stream",
  "tokio-test",
@@ -3156,7 +3156,7 @@ dependencies = [
  "serdes-ai-macros",
  "serdes-ai-tools",
  "serdes-ai-toolsets",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3177,7 +3177,7 @@ dependencies = [
  "serdes-ai-core",
  "serdes-ai-models",
  "sha2",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3194,7 +3194,7 @@ dependencies = [
  "reqwest",
  "rstest",
  "serde",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3214,7 +3214,7 @@ dependencies = [
  "serde",
  "serde_json",
  "serdes-ai-core",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tokio-tungstenite",
@@ -3238,7 +3238,7 @@ dependencies = [
  "serde_json",
  "serdes-ai-core",
  "serdes-ai-macros",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
@@ -3257,7 +3257,7 @@ dependencies = [
  "serde_json",
  "serdes-ai-core",
  "serdes-ai-tools",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tokio",
  "tokio-test",
  "tracing",
diff --git a/Cargo.toml b/Cargo.toml
index be294fd..4b3294a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,7 +46,7 @@ futures = "0.3"
 pin-project-lite = "0.2"
 
 # Error Handling
-thiserror = "1.0"
+thiserror = "2.0"
 anyhow = "1.0"
 
 # HTTP Client