diff --git a/Cargo.toml b/Cargo.toml
index 7d5f4d7..6f9c08d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -92,6 +92,7 @@ serde = { version = "1.0.106", features = ["derive"] }
 tokio = { version = "1.0.1", features = ["full", "test-util"] }
 hyper = { version = "1.1", features = ["server"] }
 serde_bytes = "0.11.4"
+serde_json = "1"
 serde_repr = "0.1.7"
 uuid = { version = "1", features = ["v4", "serde"] }
 time = { version = "0.3.17", features = ["macros", "rand"] }