diff --git a/fix_article_earning_ranking_missing_author_slug.py b/fix_article_earning_ranking_missing_author_slug.py
index 7ce70de..27661aa 100644
--- a/fix_article_earning_ranking_missing_author_slug.py
+++ b/fix_article_earning_ranking_missing_author_slug.py
@@ -6,7 +6,7 @@
 from jkit.exceptions import ResourceUnavailableError
 from sshared.logging import Logger
 
-from utils.postgres import get_jianshu_conn
+from utils.db import jianshu_pool
 
 START_DATE = date(2024, 10, 30)
 
@@ -17,30 +17,31 @@
 async def main() -> None:
     logger.info(f"准备修复 {START_DATE} 至今的数据")
 
-    conn = await get_jianshu_conn()
-
-    cursor = await conn.execute(
-        "SELECT slug FROM article_earning_ranking_records "
-        "WHERE date >= %s AND slug IS NOT NULL AND author_slug IS NULL "
-        "ORDER BY date, ranking;",
-        (START_DATE,),
-    )
-
-    async for item in cursor:
-        article = Article.from_slug(item[0])
-
-        try:
-            author_slug = (await article.info).author_info.slug
-        except ResourceUnavailableError:
-            logger.warn(f"文章 {article.slug} 已删除，跳过数据获取")
-            continue
-
-        await conn.execute(
-            "UPDATE article_earning_ranking_records SET author_slug = %s "
-            "WHERE slug = %s;",
-            (author_slug, article.slug),
+    async with jianshu_pool.get_conn() as conn:
+        cursor = await conn.execute(
+            "SELECT slug FROM article_earning_ranking_records "
+            "WHERE date >= %s AND slug IS NOT NULL AND author_slug IS NULL "
+            "ORDER BY date, ranking;",
+            (START_DATE,),
         )
-        logger.debug(f"已成功更新 {article.slug} 的 author_slug 字段为 {author_slug}")
+
+        async for item in cursor:
+            article = Article.from_slug(item[0])
+
+            try:
+                author_slug = (await article.info).author_info.slug
+            except ResourceUnavailableError:
+                logger.warn(f"文章 {article.slug} 已删除，跳过数据获取")
+                continue
+
+            await conn.execute(
+                "UPDATE article_earning_ranking_records SET author_slug = %s "
+                "WHERE slug = %s;",
+                (author_slug, article.slug),
+            )
+            logger.debug(
+                f"已成功更新 {article.slug} 的 author_slug 字段为 {author_slug}"
+            )
 
     logger.info("数据修复完成")
 
diff --git a/jobs/jianshu/article_earning_ranking.py b/jobs/jianshu/article_earning_ranking.py
index ac3ccc5..1218d01 100644
--- a/jobs/jianshu/article_earning_ranking.py
+++ b/jobs/jianshu/article_earning_ranking.py
@@ -1,4 +1,4 @@
-from datetime import datetime, timedelta
+from datetime import date, timedelta
 from typing import Optional
 
 from jkit.config import CONFIG
@@ -7,7 +7,6 @@
 from jkit.user import UserInfo
 from prefect import flow
 from sshared.retry.asyncio import retry
-from sshared.time import get_today_as_datetime
 
 from models.jianshu.article_earning_ranking_record import ArticleEarningRankingRecord
 from models.jianshu.user import User
@@ -56,9 +55,7 @@ async def get_author_slug_and_info(
         return None, None
 
 
-async def process_item(
-    item: RecordField, date: datetime
-) -> ArticleEarningRankingRecord:
+async def process_item(item: RecordField, date_: date) -> ArticleEarningRankingRecord:
     author_slug, author_info = await get_author_slug_and_info(item)
 
     if author_slug is not None and author_info is not None:
@@ -70,7 +67,7 @@ async def process_item(
         )
 
     return ArticleEarningRankingRecord(
-        date=date.date(),
+        date=date_,
         ranking=item.ranking,
         slug=item.slug,
         title=item.title,
@@ -88,11 +85,11 @@ async def process_item(
 async def main() -> None:
     log_flow_run_start(logger)
 
-    date = get_today_as_datetime() - timedelta(days=1)
+    date_ = date.today() - timedelta(days=1)
 
     data: list[ArticleEarningRankingRecord] = []
-    async for item in ArticleEarningRanking(date.date()):
-        processed_item = await process_item(item, date=date)
+    async for item in ArticleEarningRanking(date_):
+        processed_item = await process_item(item, date_=date_)
         data.append(processed_item)
 
     await ArticleEarningRankingRecord.insert_many(data)
diff --git a/jobs/jianshu/daily_update_ranking.py b/jobs/jianshu/daily_update_ranking.py
index add654d..8477cc5 100644
--- a/jobs/jianshu/daily_update_ranking.py
+++ b/jobs/jianshu/daily_update_ranking.py
@@ -1,11 +1,10 @@
-from datetime import datetime
+from datetime import date
 
 from jkit.ranking.daily_update import (
     DailyUpdateRanking,
     DailyUpdateRankingRecord,
 )
 from prefect import flow
-from sshared.time import get_today_as_datetime
 
 from models.jianshu.daily_update_ranking_record import (
     DailyUpdateRankingRecord as DbDailyUpdateRankingRecord,
@@ -19,7 +18,7 @@
 
 
 async def process_item(
-    item: DailyUpdateRankingRecord, date: datetime
+    item: DailyUpdateRankingRecord, date_: date
 ) -> DbDailyUpdateRankingRecord:
     await User.upsert(
         slug=item.user_info.slug,
@@ -28,7 +27,7 @@ async def process_item(
     )
 
     return DbDailyUpdateRankingRecord(
-        date=date.date(),
+        date=date_,
         ranking=item.ranking,
         slug=item.user_info.slug,
         days=item.days,
@@ -43,11 +42,11 @@ async def process_item(
 async def main() -> None:
     log_flow_run_start(logger)
 
-    date = get_today_as_datetime()
+    date_ = date.today()
 
     data: list[DbDailyUpdateRankingRecord] = []
     async for item in DailyUpdateRanking():
-        processed_item = await process_item(item, date=date)
+        processed_item = await process_item(item, date_=date_)
         data.append(processed_item)
 
     await DbDailyUpdateRankingRecord.insert_many(data)
diff --git a/jobs/jianshu/user_assets_ranking.py b/jobs/jianshu/user_assets_ranking.py
index ba62f8b..4bdd746 100644
--- a/jobs/jianshu/user_assets_ranking.py
+++ b/jobs/jianshu/user_assets_ranking.py
@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import date
 from typing import Optional
 
 from jkit.config import CONFIG
@@ -7,7 +7,6 @@
 from jkit.user import User
 from prefect import flow
 from sshared.retry.asyncio import retry
-from sshared.time import get_today_as_datetime
 
 from models.jianshu.user import User as DbUser
 from models.jianshu.user_assets_ranking_record import (
@@ -58,9 +57,7 @@ async def get_fp_ftn_amount(
         return None, None
 
 
-async def process_item(
-    item: AssetsRankingRecord, date: datetime
-) -> DbAssetsRankingRecord:
+async def process_item(item: AssetsRankingRecord, date_: date) -> DbAssetsRankingRecord:
     fp_amount, ftn_amount = await get_fp_ftn_amount(item)
 
     if item.user_info.slug:
@@ -72,7 +69,7 @@ async def process_item(
         )
 
     return DbAssetsRankingRecord(
-        date=date.date(),
+        date=date_,
         ranking=item.ranking,
         slug=item.user_info.slug,
         fp=fp_amount,
@@ -89,11 +86,11 @@ async def process_item(
 async def main() -> None:
     log_flow_run_start(logger)
 
-    date = get_today_as_datetime()
+    date_ = date.today()
 
     data: list[DbAssetsRankingRecord] = []
     async for item in AssetsRanking():
-        processed_item = await process_item(item, date=date)
+        processed_item = await process_item(item, date_=date_)
         data.append(processed_item)
 
         if len(data) == 1000: