diff --git a/lib/plivo/resources/tollfree_verification.rb b/lib/plivo/resources/tollfree_verification.rb
index ce107e50..8d409285 100644
--- a/lib/plivo/resources/tollfree_verification.rb
+++ b/lib/plivo/resources/tollfree_verification.rb
@@ -82,7 +82,7 @@ def list(options = nil)
         valid_param?(:options, options, Hash, true)
 
         params = {}
-        params_expected = %i[ profile_uuid number status created_lt created_gt usecase ]
+        params_expected = %i[ profile_uuid number status created_lt created_gt usecase created_lte created_gte ]
         params_expected.each do |param|
           if options.key?(param) &&
              valid_param?(param, options[param], [String, Symbol], true)