diff --git a/src/statistics/database.rs b/src/statistics/database.rs
index f02c8d0..e5aba71 100644
--- a/src/statistics/database.rs
+++ b/src/statistics/database.rs
@@ -1,6 +1,6 @@
 use std::collections::HashMap;
 
-use chrono::{DateTime, Utc};
+use chrono::{DateTime, NaiveDate, Utc};
 use chrono_tz::Tz;
 use clickhouse_rs::{row, Block, Pool};
 use tracing::warn;
@@ -407,7 +407,7 @@ impl StatisticDatabaseController {
         let rows = result.rows();
         let mut data = Vec::new();
         for row in rows {
-            let date: DateTime<Tz> = row.get("date")?;
+            let date: NaiveDate = row.get("date")?;
             let value: u64 = row.get("value")?;
             data.push(Datapoint { date, value });
         }
diff --git a/src/statistics/model.rs b/src/statistics/model.rs
index 20b580a..6af2005 100644
--- a/src/statistics/model.rs
+++ b/src/statistics/model.rs
@@ -1,8 +1,8 @@
 use std::collections::HashMap;
 
 use chrono::DateTime;
+use chrono::NaiveDate;
 use chrono::Utc;
-use chrono_tz::Tz;
 use clickhouse_rs::Pool;
 use serde::{Deserialize, Serialize};
 use uuid::Uuid;
@@ -138,7 +138,7 @@ pub struct StatisticCounts<T> {
 
 #[derive(Serialize)]
 pub struct Datapoint {
-    pub date: DateTime<Tz>,
+    pub date: NaiveDate,
     pub value: u64,
 }