diff --git a/src-python/config.py b/src-python/config.py
index 6f798240..1d9b530d 100644
--- a/src-python/config.py
+++ b/src-python/config.py
@@ -57,6 +57,10 @@ class Config:
     def GITHUB_URL(self):
         return self._GITHUB_URL
 
+    @property
+    def UPDATER_URL(self):
+        return self._UPDATER_URL
+
     @property
     def BOOTH_URL(self):
         return self._BOOTH_URL
@@ -961,6 +965,7 @@ class Config:
         self._PATH_LOGS = os_path.join(self._PATH_LOCAL, "logs")
         os_makedirs(self._PATH_LOGS, exist_ok=True)
         self._GITHUB_URL = "https://api.github.com/repos/misyaguziya/VRCT/releases/latest"
+        self._UPDATER_URL = "https://api.github.com/repos/misyaguziya/VRCT_updater/releases/latest"
         self._BOOTH_URL = "https://misyaguziya.booth.pm/"
         self._DOCUMENTS_URL = "https://mzsoftware.notion.site/VRCT-Documents-be79b7a165f64442ad8f326d86c22246"
         self._DEEPL_AUTH_KEY_PAGE_URL = "https://www.deepl.com/ja/account/summary"
diff --git a/src-python/model.py b/src-python/model.py
index 52ac1475..b2c7a9f0 100644
--- a/src-python/model.py
+++ b/src-python/model.py
@@ -352,25 +352,25 @@ class Model:
 
     @staticmethod
     def updateSoftware():
-        try:
-            program_name = "updater.exe"
-            release_url = "https://api.github.com/repos/misyaguziya/VRCT_updater/releases/latest"
-            current_directory = config.PATH_LOCAL
-            res = requests_get(release_url)
-            assets = res.json()['assets']
-            url = [i["browser_download_url"] for i in assets if i["name"] == program_name][0]
-
-            res = requests_get(url, stream=True)
-            with open(os_path.join(current_directory, program_name), 'wb') as file:
-                for chunk in res.iter_content(chunk_size=1024*5):
-                    file.write(chunk)
-        except Exception:
-            import traceback
-            with open('error.log', 'a') as f:
-                traceback.print_exc(file=f)
-
-        command = [current_directory, program_name]
-        Popen(command, cwd=current_directory)
+        # try to update at most 5 times
+        for _ in range(5):
+            try:
+                program_name = "update.exe"
+                current_directory = config.PATH_LOCAL
+                res = requests_get(config.UPDATER_URL)
+                assets = res.json()['assets']
+                url = [i["browser_download_url"] for i in assets if i["name"] == program_name][0]
+                res = requests_get(url, stream=True)
+                with open(os_path.join(current_directory, program_name), 'wb') as file:
+                    for chunk in res.iter_content(chunk_size=1024*5):
+                        file.write(chunk)
+                break
+            except Exception:
+                import traceback
+                with open('error.log', 'a') as f:
+                    traceback.print_exc(file=f)
+        # run updater
+        Popen(program_name, cwd=current_directory)
 
     def getListMicHost(self):
         result = [host for host in device_manager.getMicDevices().keys()]