diff --git a/runtime/sidecar-watcher/Cargo.toml b/runtime/sidecar-watcher/Cargo.toml
index 37b023a6d..d9eaf1c6c 100644
--- a/runtime/sidecar-watcher/Cargo.toml
+++ b/runtime/sidecar-watcher/Cargo.toml
@@ -25,7 +25,7 @@ axum = "0.7"
 jsonschema = "0.17"
 once_cell = "1.19"
 metrics = "0.21"
-thiserror = "1.0"
+thiserror = "2.0"
 k8s-openapi = { version = "0.20", features = ["v1_28"] }
 kube = { version = "0.87", features = ["client", "config"] }
 # Performance optimization dependencies