diff --git a/salesforcecdpconnector/connection.py b/salesforcecdpconnector/connection.py
index ff92e9e..5953726 100644
--- a/salesforcecdpconnector/connection.py
+++ b/salesforcecdpconnector/connection.py
@@ -14,7 +14,7 @@
 
 apilevel = "2.0"
 threadsafety = 2
-paramstyle = "qmark"
+paramstyle = None
 
 
 class SalesforceCDPConnection:
diff --git a/salesforcecdpconnector/cursor.py b/salesforcecdpconnector/cursor.py
index 8ff00e8..1f6a963 100644
--- a/salesforcecdpconnector/cursor.py
+++ b/salesforcecdpconnector/cursor.py
@@ -158,13 +158,8 @@ def _resolve_query_with_params(self, query, params):
         if params is None and params_count_from_query == 0:
             return query
 
-        if self._is_iterable(params) and params_count_from_query == len(params):
-            for param in params:
-                query = self._replace_next_param(query, param)
-        elif params_count_from_query == 1 and params is not None:
-            query = self._replace_next_param(query, params)
-        else:
-            raise Exception('Parameter count not matching')
+        if params:
+            raise Exception('Parameters are not supported')
 
         return query
 
diff --git a/tests/test_cursor.py b/tests/test_cursor.py
index c212a24..1d275ec 100644
--- a/tests/test_cursor.py
+++ b/tests/test_cursor.py
@@ -155,5 +155,12 @@ def test_fetchoneendingwithemptybatch(self, mock1, mock2):
         self.assertEqual(len(all_records), 3)
         cursor.close()
 
+    def test_params_fail(self):
+        connection = SalesforceCDPConnection('login_url', 'username', 'password', 'client_id', 'client_secret')
+        cursor = connection.cursor()
+        with self.assertRaises(Exception) as context:
+            cursor.execute("select * from UnifiedIndividuals__dlm where col__c = ?", ['test'])
+        self.assertTrue("Parameters are not supported" in context.exception.args)
+
 if __name__ == '__main__':
     unittest.main()