diff --git a/ecs/jskult-webapp/src/depends/auth.py b/ecs/jskult-webapp/src/depends/auth.py
index 308704a9..f2383d4e 100644
--- a/ecs/jskult-webapp/src/depends/auth.py
+++ b/ecs/jskult-webapp/src/depends/auth.py
@@ -8,7 +8,7 @@ from src.error.exceptions import JWTTokenVerifyException
 from src.logging.get_logger import get_logger
 from src.model.internal.jwt_token import JWTToken
 from src.model.internal.session import UserSession
-from src.services.session_service import get_session
+from src.services.session_service import get_session, set_session
 from src.system_var import environment
 
 logger = get_logger('認証チェック')
@@ -16,7 +16,7 @@ cookie_security = APIKeyCookie(name='session', auto_error=False)
 code_security = APIKeyQuery(name='code', auto_error=False)
 
 
-def get_current_session(session_key=Depends(cookie_security)):
+def get_current_session(session_key=Depends(cookie_security)) -> Union[UserSession, None]:
     if session_key is None:
         return None
 
@@ -26,7 +26,7 @@ def get_current_session(session_key=Depends(cookie_security)):
     return session
 
 
-def check_session_expired(session: Union[UserSession, None] = Depends(get_current_session)):
+def check_session_expired(session: Union[UserSession, None] = Depends(get_current_session)) -> Union[UserSession, None]:
     """セッションの最後にアクセスした時間が、セッション有効期限切れであるかどうかをチェックする"""
     if session is None:
         return None
@@ -42,14 +42,19 @@ def check_session_expired(session: Union[UserSession, None] = Depends(get_curren
     return session
 
 
-def verify_session(session: Union[UserSession, None] = Depends(check_session_expired)):
+def verify_session(session: Union[UserSession, None] = Depends(check_session_expired)) -> Union[UserSession, None]:
     if session is None:
         return None
     jwt_token = JWTToken(session.id_token, session.refresh_token)
     try:
-        jwt_token.verify_token()
+        verified_token = jwt_token.verify_token()
     except JWTTokenVerifyException as e:
         logger.info(e)
         return None
-    # FIXME: ここで検証後のセッションになっていないのでは？
+
+    # IDトークンがリフレッシュされた場合、セッションに詰め直して更新
+    if verified_token.is_refreshed:
+        session.update(actions=[UserSession.id_token.set(verified_token.id_token)])
+        set_session(session)
+    session.id_token = verified_token.id_token
     return session
diff --git a/ecs/jskult-webapp/src/model/internal/jwt_token.py b/ecs/jskult-webapp/src/model/internal/jwt_token.py
index 07bbab0b..69865846 100644
--- a/ecs/jskult-webapp/src/model/internal/jwt_token.py
+++ b/ecs/jskult-webapp/src/model/internal/jwt_token.py
@@ -18,11 +18,13 @@ class JWTToken:
     id_token: str
     refresh_token: str
     verified_jwt: Optional[dict]
+    is_refreshed: Optional[bool]
 
-    def __init__(self, id_token: str, refresh_token: str, verified_jwt: dict = None) -> None:
+    def __init__(self, id_token: str, refresh_token: str, verified_jwt: dict = None, is_refreshed: bool = False):
         self.id_token = id_token
         self.refresh_token = refresh_token
         self.verified_jwt = verified_jwt
+        self.is_refreshed = is_refreshed
 
     @property
     def verified_token(self):
@@ -118,7 +120,7 @@ class JWTToken:
         token_response = json.loads(res.text)
         return cls(id_token=token_response['id_token'], refresh_token=refresh_token)
 
-    def verify_token(self):
+    def verify_token(self, is_refreshed=False):
         if self.id_token is None:
             raise Exception('アクセストークンがない')
 
@@ -146,7 +148,8 @@ class JWTToken:
         except jwt.ExpiredSignatureError:
             logger.info('IDトークンの有効期限が切れたため、トークンをリフレッシュ')
             refreshed_jwt_token = JWTToken.refresh(self.refresh_token)
-            return refreshed_jwt_token.verified_token()
+            # リフレッシュ後のトークンを再度検証
+            return refreshed_jwt_token.verify_token(is_refreshed=True)
         # 有効期限以外の検証に失敗した場合は例外とする
         except jwt.InvalidTokenError as e:
             raise JWTTokenVerifyException('Invalid token', e)
@@ -157,5 +160,6 @@ class JWTToken:
         return JWTToken(
             id_token=self.id_token,
             refresh_token=self.refresh_token,
-            verified_jwt=verified_jwt
+            verified_jwt=verified_jwt,
+            is_refreshed=is_refreshed
         )