diff --git a/setup.cfg b/setup.cfg
index f935ef50ab4b2af14e1c060c8eb6bf860851636b..79ae482e5845aa737629902dc510672840d0f327 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,8 +9,8 @@ keywords = astronomy, astrophysics, cosmology, space, CSST
 url = https://csst-tb.bao.ac.cn/code/csst-dfs/csst-dfs-api
 
 [bumpver]
-current_version = "1.0.1"
-version_pattern = "MAJOR.MINOR.PATCH[PYTAGNUM]"
+current_version = "1.0.1.2023-12.1"
+version_pattern = "MAJOR.MINOR.PATCH-YYYY-MM.INC0"
 commit_message = "Release {new_version}"
 commit = True
 tag = True
diff --git a/setup.py b/setup.py
index a83a7d2284d94a6283e3f045bed01ffb97d6c082..27d442e33cb33dc1c56405e50ea72ba50a86424c 100644
--- a/setup.py
+++ b/setup.py
@@ -36,15 +36,15 @@ def requirements():
         ]
 
 def version():
-    version = {}
-    VERSION_PATH = os.path.join(os.path.dirname(__file__), "csst_dfs_api", "version.py")
-    with open(VERSION_PATH, "r") as file:
-        exec(file.read(), version)
-    return version
+    __version = {}
+    version_path = os.path.join(os.path.dirname(__file__), "csst_dfs_api", "version.py")
+    with open(version_path, "r") as file:
+        exec(file.read(), __version)
+    return __version["__version__"]
 
 setup(
     name="csst_dfs_api",
-    version=version["__version__"],
+    version=version(),
     description="API's to access CSST Data Flow System (DFS)",
     long_description=open('README.md').read(),
     license="MIT",