diff --git a/backend/core/basic/equipment.py b/backend/core/basic/equipment.py
index 8549fb2f..383c5743 100644
--- a/backend/core/basic/equipment.py
+++ b/backend/core/basic/equipment.py
@@ -81,29 +81,33 @@ class Equipments:
     def __init__(self, version='0'):
         self.version = version
         self.engine = get_engine(version)
-        self.equs: list[Equ] = []
-        self.oaths: list[Oath] = []
-        self.oath_dict: dict[str, Oath] = {}
-        # self.stones: list[Equ] = []
-        self.funs = self.init_func()
-        self.equ_dict: dict[str, Equ] = {}
-        # self.stone_dict: dict[str, Equ] = {}
-        self.jades = []
-        self.enchants = []
-        self.emblems = []
-        self.suits: list[Suit] = []
-        self.suit_dict: dict[str, Suit] = {}
-        self.suit_id_dict: dict[str, Suit] = {}
-        self.oath_suits: list[OathSuit] = []
-        self.oath_suit_dict: dict[str, OathSuit] = {}
-        self.init_equs()
-        self.init_suits()
-        self.init_enchants()
-        # self.init_stones()
-        self.init_emblem()
-        self.init_jades()
-        self.init_oaths()
-        self.init_oath_suits()
+        try:
+            self.equs: list[Equ] = []
+            self.oaths: list[Oath] = []
+            self.oath_dict: dict[str, Oath] = {}
+            # self.stones: list[Equ] = []
+            self.funs = self.init_func()
+            self.equ_dict: dict[str, Equ] = {}
+            # self.stone_dict: dict[str, Equ] = {}
+            self.jades = []
+            self.enchants = []
+            self.emblems = []
+            self.suits: list[Suit] = []
+            self.suit_dict: dict[str, Suit] = {}
+            self.suit_id_dict: dict[str, Suit] = {}
+            self.oath_suits: list[OathSuit] = []
+            self.oath_suit_dict: dict[str, OathSuit] = {}
+            self.init_equs()
+            self.init_suits()
+            self.init_enchants()
+            # self.init_stones()
+            self.init_emblem()
+            self.init_jades()
+            self.init_oaths()
+            self.init_oath_suits()
+        finally:
+            self.engine.dispose()
+            self.engine = None
 
     def init_equs(self):
         """从数据库中获取所有装备信息"""
diff --git a/backend/dataFiles/dcalc_0.db b/backend/dataFiles/dcalc_0.db
index f5d94e9d..c136b101 100644
Binary files a/backend/dataFiles/dcalc_0.db and b/backend/dataFiles/dcalc_0.db differ
diff --git a/backend/database/connect.py b/backend/database/connect.py
index 35a897ec..3c009340 100644
--- a/backend/database/connect.py
+++ b/backend/database/connect.py
@@ -3,6 +3,7 @@ from pathlib import Path
 import redis
 from sqlalchemy import create_engine
 from sqlalchemy.orm import Session
+from sqlalchemy.pool import NullPool
 from config.main import config
 
 RedisPool = redis.ConnectionPool.from_url(config.REDIS_URL)
@@ -21,7 +22,11 @@ def get_redis():
 @cache
 def get_db_engine(version='0'):
     db_path = BACKEND_DIR / 'dataFiles' / f'dcalc_{version}.db'
-    return create_engine(f'sqlite:///{db_path}', connect_args={'check_same_thread': False})
+    return create_engine(
+        f'sqlite:///{db_path}',
+        connect_args={'check_same_thread': False},
+        poolclass=NullPool,
+    )
 
 
 def get_db():
diff --git a/backend/openapi b/backend/openapi
index 79295067..97fb4c18 160000
--- a/backend/openapi
+++ b/backend/openapi
@@ -1 +1 @@
-Subproject commit 79295067f0062b9a1d9c5b31a700b74d524c5e02
+Subproject commit 97fb4c180e55e53117e1edef9173848296ab3225