diff --git a/requirements.txt b/requirements.txt
index 9b5eb21..cfa05f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ prometheus-client==0.22.1
 requests==2.32.4
 certifi==2025.7.9
 websockets==15.0.1
+packaging==25.0
 # only required for linux and macos
 xvfbwrapper==0.2.13; platform_system != "Windows"
 # only required for windows
diff --git a/src/undetected_chromedriver/patcher.py b/src/undetected_chromedriver/patcher.py
index a1dd66a..7a60f76 100644
--- a/src/undetected_chromedriver/patcher.py
+++ b/src/undetected_chromedriver/patcher.py
@@ -223,7 +223,7 @@ class Patcher(object):
                 pass
 
             release = self.fetch_release_number()
-            self.version_main = release.version[0]
+            self.version_main = release.major
             self.version_full = release
             self.unzip_package(self.fetch_package())
 
@@ -328,11 +328,11 @@ class Patcher(object):
         """
         zip_name = f"chromedriver_{self.platform_name}.zip"
         if self.is_old_chromedriver:
-            download_url = "%s/%s/%s" % (self.url_repo, self.version_full.vstring, zip_name)
+            download_url = "%s/%s/%s" % (self.url_repo, str(self.version_full), zip_name)
         else:
             zip_name = zip_name.replace("_", "-", 1)
             download_url = "https://storage.googleapis.com/chrome-for-testing-public/%s/%s/%s"
-            download_url %= (self.version_full.vstring, self.platform_name, zip_name)
+            download_url %= (str(self.version_full), self.platform_name, zip_name)
 
         logger.debug("downloading from %s" % download_url)
         return urlretrieve(download_url)[0]