diff --git a/chaindexing/Cargo.toml b/chaindexing/Cargo.toml
index 3b606c1..d4e27fc 100644
--- a/chaindexing/Cargo.toml
+++ b/chaindexing/Cargo.toml
@@ -24,7 +24,7 @@ diesel-async = { version = "0.4", features = ["bb8", "postgres"] }
 pin-project-lite = "0.2.14"
 ethers = "2.0"
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1"
+serde_json = "1.0.116"
 tokio-postgres = { version = "0.7", features = ["with-serde_json-1"], optional = true }
 tokio = { version = "1", features = ["full"] }
 uuid = { version = "1", features = ["v4", "serde"] }