diff --git a/server/app/Cargo.toml b/server/app/Cargo.toml
index ea82a39..b3de4ef 100644
--- a/server/app/Cargo.toml
+++ b/server/app/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.89"
-sqlx = {version = "0.8.2", features = ["mysql", "runtime-tokio", "uuid", "time"]}
+sqlx = {version = "0.8.2", features = ["mysql", "runtime-tokio", "uuid", "chrono"]}
 tokio = {version = "1.40.0", features = ["rt"]}
 openapi = {path = "../apis"}
 axum = "0.7.6"
diff --git a/server/app/src/repo/polling.rs b/server/app/src/repo/polling.rs
index 14ca42f..d3167cc 100644
--- a/server/app/src/repo/polling.rs
+++ b/server/app/src/repo/polling.rs
@@ -1,10 +1,10 @@
 use anyhow::{Ok, Result};
-use sqlx::{query, query_as, types::time::PrimitiveDateTime};
+use sqlx::{query, query_as, types::chrono::NaiveDateTime};
 
 use super::Repository;
 
 struct Polling {
-    last: PrimitiveDateTime,
+    last: NaiveDateTime,
 }
 
 impl Repository {
@@ -13,7 +13,7 @@ impl Repository {
             .fetch_one(&self.pool)
             .await?;
 
-        Ok(result.last.to_string())
+        Ok(result.last.and_utc().to_string())
     }
 
     pub async fn record_time(&self, checkpoint: String) -> Result<()> {