diff --git a/hubspot/utils/requests/http_request_builder.py b/hubspot/utils/requests/http_request_builder.py
index 047674bc..c970909c 100644
--- a/hubspot/utils/requests/http_request_builder.py
+++ b/hubspot/utils/requests/http_request_builder.py
@@ -67,7 +67,7 @@ def generate_url(self) -> str:
 
         qs = self.options.get("qs")
         if qs:
-            query_string = urlencode(qs)
+            query_string = urlencode(qs, doseq=True)
             url += f"?{query_string}"
 
         return url