diff --git a/Cargo.toml b/Cargo.toml
index f3eac12..33f36af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,9 +16,8 @@ publish = false
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }
-serde_with = { version = "1.12", features = ["chrono"] }
+serde_with = "1.12"
 serde_json = "1"
-chrono = { version = "0.4", features = ["serde"] }
 getset = "0.1"
 uuid = { version = "0.8", features = ["serde"] }
 thiserror = "1"
diff --git a/src/payload/mod.rs b/src/payload/mod.rs
index b6af8cb..70d233c 100644
--- a/src/payload/mod.rs
+++ b/src/payload/mod.rs
@@ -64,7 +64,7 @@ pub struct Value {
 
     #[getset(get = "pub")]
     #[serde_as(as = "TimestampMilliSeconds<i64>")]
-    timestamp: chrono::DateTime<chrono::Utc>,
+    timestamp: std::time::SystemTime,
 }
 
 impl Value {