diff --git a/auto-analysis/check_version.py b/auto-analysis/check_version.py
index d3d31da..1b4e195 100644
--- a/auto-analysis/check_version.py
+++ b/auto-analysis/check_version.py
@@ -1,13 +1,21 @@
-from utils import get_version, download_file, extract_file, log
+from utils import get_version, download_file, extract_file, log, DOWNLOAD_LINK
 import os
 
+BASE_DIR = os.path.dirname(__file__)
+
+
+def win_x64_version():
+    url = DOWNLOAD_LINK["win"]["x64"]
+    dir = os.path.join(BASE_DIR, "win/x64")
+
+    download_path = os.path.join(dir, os.path.basename(url))
+    download_file(url, download_path)
+    extract_file(download_path, dir)
+    version = get_version(dir)
+
+    open(os.path.join(dir, "LATEST_VERSION"), "w").write(version)
+
+
 if __name__ == '__main__':
-    DOWNLOAD_URL = "https://typora.io/windows/typora-setup-x64.exe"
-    BASE_DIR = os.path.join(os.path.dirname(__file__), "win/x64")
+    win_x64_version()
 
-    download_path = os.path.join(BASE_DIR, os.path.basename(DOWNLOAD_URL))
-    download_file(DOWNLOAD_URL, download_path)
-    extract_file(download_path, BASE_DIR)
-    version = get_version(BASE_DIR)
-
-    open("LATEST_VERSION", "w").write(version)