diff --git a/ecs/jskult-webapp/src/controller/logout.py b/ecs/jskult-webapp/src/controller/logout.py
index 69de2c22..bae8a3aa 100644
--- a/ecs/jskult-webapp/src/controller/logout.py
+++ b/ecs/jskult-webapp/src/controller/logout.py
@@ -8,16 +8,14 @@ from src.model.internal.session import UserSession
 from src.model.view.logout_view_model import LogoutViewModel
 from src.system_var import constants
 from src.templates import templates
+from src.services.session_service import SessionService
 
 router = APIRouter()
 
 #########################
 # Views                 #
 #########################
-
-def delete_session(session: Union[UserSession, None] = Depends(get_current_session)):
-    if session:
-        session.delete()
+    
 
 
 @router.get('/', response_class=HTMLResponse)
@@ -53,6 +51,7 @@ def logout_view(
     template_response.delete_cookie('session')
 
     # セッション削除
-    delete_session(session)
+    if session:
+        SessionService.delete_session(session)
 
     return template_response
diff --git a/ecs/jskult-webapp/src/services/session_service.py b/ecs/jskult-webapp/src/services/session_service.py
index 48edbcd4..b58d7241 100644
--- a/ecs/jskult-webapp/src/services/session_service.py
+++ b/ecs/jskult-webapp/src/services/session_service.py
@@ -18,11 +18,9 @@ def get_session(key: str) -> UserSession:
         logger.debug(f'セッション取得失敗：{e}')
         return None
 
-def delete_session (key: str) -> bool:
+def delete_session (session: UserSession):
     try:
-        session = UserSession.get(hash_key=key, consistent_read=True)
         session.delete()
-        return True
-    except UserSession.DoesNotExist as e:
-        logger.debug(f'セッション削除失敗：{e}')
-        return False
\ No newline at end of file
+        return
+    except:
+        return
\ No newline at end of file