diff --git a/pyicloud/base.py b/pyicloud/base.py
index 10de085..3cea2eb 100644
--- a/pyicloud/base.py
+++ b/pyicloud/base.py
@@ -41,22 +41,10 @@ class PyiCloudService(object):
             'User-Agent': 'Opera/9.52 (X11; Linux i686; U; en)'
         })
 
-        self.refresh_version()
-        self.params = {
-            'clientId': self.client_id,
-            'clientBuildNumber': self.build_id
-        }
+        self.params = {}
 
         self.authenticate()
 
-    def refresh_version(self):
-        """
-        Retrieves the buildNumber from the /version endpoint.
-        This is used by almost all request query strings.
-        """
-        req = requests.get(self._base_system_url)
-        self.build_id = req.json()['buildNumber']
-
     def refresh_validate(self):
         """
         Queries the /validate endpoint and fetches two key values we need:
diff --git a/requirements.txt b/requirements.txt
index 04f80f5..a167244 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1 @@
-uuid
-requests
\ No newline at end of file
+requests>=1.2