diff --git a/app/modules/themoviedb/tmdbv3api/objs/change.py b/app/modules/themoviedb/tmdbv3api/objs/change.py
index a4a4867e6..7f3ceea8a 100644
--- a/app/modules/themoviedb/tmdbv3api/objs/change.py
+++ b/app/modules/themoviedb/tmdbv3api/objs/change.py
@@ -1,14 +1,17 @@
-from ..tmdb import TMDb
+from ..tmdb import TMDb, TMDbJson
 
 
 class Change(TMDb):
+    """提供电影、剧集和人物的变更列表查询。"""
+
     _urls = {
         "movie": "/movie/changes",
         "tv": "/tv/changes",
         "person": "/person/changes"
     }
 
-    def _change_list(self, change_type, start_date="", end_date="", page=1):
+    def _change_list(self, change_type: str, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
+        """拼装可选时间范围和页码，并原样返回变更列表。"""
         params = "page=%s" % page
         if start_date:
             params += "&start_date=%s" % start_date
@@ -20,7 +23,8 @@ class Change(TMDb):
             key="results"
         )
 
-    async def _async_change_list(self, change_type, start_date="", end_date="", page=1):
+    async def _async_change_list(self, change_type: str, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
+        """拼装可选时间范围和页码，并原样返回变更列表。"""
         params = "page=%s" % page
         if start_date:
             params += "&start_date=%s" % start_date
@@ -32,7 +36,7 @@ class Change(TMDb):
             key="results"
         )
 
-    def movie_change_list(self, start_date="", end_date="", page=1):
+    def movie_change_list(self, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
         """
         Get the changes for a movie. By default only the last 24 hours are returned.
         You can query up to 14 days in a single query by using the start_date and end_date query parameters.
@@ -43,7 +47,7 @@ class Change(TMDb):
         """
         return self._change_list("movie", start_date=start_date, end_date=end_date, page=page)
 
-    async def async_movie_change_list(self, start_date="", end_date="", page=1):
+    async def async_movie_change_list(self, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
         """
         Get the changes for a movie. By default only the last 24 hours are returned.（异步版本）
         You can query up to 14 days in a single query by using the start_date and end_date query parameters.
@@ -54,7 +58,7 @@ class Change(TMDb):
         """
         return await self._async_change_list("movie", start_date=start_date, end_date=end_date, page=page)
 
-    def tv_change_list(self, start_date="", end_date="", page=1):
+    def tv_change_list(self, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
         """
         Get a list of all of the TV show ids that have been changed in the past 24 hours.
         You can query up to 14 days in a single query by using the start_date and end_date query parameters.
@@ -65,7 +69,7 @@ class Change(TMDb):
         """
         return self._change_list("tv", start_date=start_date, end_date=end_date, page=page)
 
-    async def async_tv_change_list(self, start_date="", end_date="", page=1):
+    async def async_tv_change_list(self, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
         """
         Get a list of all of the TV show ids that have been changed in the past 24 hours.（异步版本）
         You can query up to 14 days in a single query by using the start_date and end_date query parameters.
@@ -76,7 +80,7 @@ class Change(TMDb):
         """
         return await self._async_change_list("tv", start_date=start_date, end_date=end_date, page=page)
 
-    def person_change_list(self, start_date="", end_date="", page=1):
+    def person_change_list(self, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
         """
         Get a list of all of the person ids that have been changed in the past 24 hours.
         You can query up to 14 days in a single query by using the start_date and end_date query parameters.
@@ -87,7 +91,7 @@ class Change(TMDb):
         """
         return self._change_list("person", start_date=start_date, end_date=end_date, page=page)
 
-    async def async_person_change_list(self, start_date="", end_date="", page=1):
+    async def async_person_change_list(self, start_date: str | None = "", end_date: str | None = "", page: int | None = 1) -> TMDbJson:
         """
         Get a list of all of the person ids that have been changed in the past 24 hours.（异步版本）
         You can query up to 14 days in a single query by using the start_date and end_date query parameters.
diff --git a/mypy.ini b/mypy.ini
index ecf594e42..b17a9d394 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -185,4 +185,5 @@ files =
     app/modules/themoviedb/tmdbv3api/objs/company.py,
     app/modules/themoviedb/tmdbv3api/objs/keyword.py,
     app/modules/themoviedb/tmdbv3api/objs/review.py,
+    app/modules/themoviedb/tmdbv3api/objs/change.py,
     scripts/architecture/async_blocking.py