diff --git a/attestation-agent/kbc/Cargo.toml b/attestation-agent/kbc/Cargo.toml
index 1d5d5afad..e58810e02 100644
--- a/attestation-agent/kbc/Cargo.toml
+++ b/attestation-agent/kbc/Cargo.toml
@@ -31,7 +31,7 @@ tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
 rstest = "0.16.0"
 
 [build-dependencies]
-tonic-build = { version = "0.8.0", optional = true }
+tonic-build = { version = "0.9.2", optional = true }
 
 [features]
 default = ["sample_kbc", "rust-crypto"]