diff --git a/src/data/heartbeat/model.rs b/src/data/heartbeat/model.rs
index e2a0107..d4ed8cf 100644
--- a/src/data/heartbeat/model.rs
+++ b/src/data/heartbeat/model.rs
@@ -13,7 +13,7 @@ pub struct HeartbeatEntry {
     #[serde(skip)]
     pub msg: String,
     #[serde(default)]
-    pub ping: Option<u64>,
+    pub ping: Option<f32>,
 }
 
 #[derive(Debug, Clone, Deserialize, Serialize)]