diff --git a/spgci/forward_curves.py b/spgci/forward_curves.py
index 51bde1c..211b390 100644
--- a/spgci/forward_curves.py
+++ b/spgci/forward_curves.py
@@ -36,7 +36,7 @@ class ForwardCurves:
     """
 
     _path = "market-data/forward-curve/v3/"
-    _ref_path = "market-data/reference-data/v3/forward-curve/search"
+    _ref_path = "market-data/reference-data/v4/forward-curve/search"
 
     class MatFrequency(Enum):
         """Derivative Maturity Frequency"""
@@ -351,6 +351,7 @@ def get_curves(
             "page": page,
             "pageSize": page_size,
             "subscribed_only": subscribed_only,
+            "showAdditionalFields": "false"
         }
         return get_data(
             path=f"{self._ref_path}",
diff --git a/spgci/market_data.py b/spgci/market_data.py
index 5fe0b46..65587ae 100644
--- a/spgci/market_data.py
+++ b/spgci/market_data.py
@@ -39,7 +39,7 @@ class MarketData:
     """
 
     _path = "market-data/v3/value/"
-    _ref_path = "market-data/reference-data/v3/search"
+    _ref_path = "market-data/reference-data/v4/search"
     _mdd_fields = "deltaPrice, deltaPercent, pValue, pDate"
 
     class ContractType(Enum):
@@ -679,6 +679,7 @@ def get_symbols(
             "filter": filter_exp,
             "page": page,
             "pageSize": page_size,
+            "showAdditionalFields": "false"
         }
         return get_data(
             path=f"{self._ref_path}",
@@ -1179,4 +1180,4 @@ def get_corrections_by_modified_date(
             params=params,
             paginate=paginate,
             raw=raw,
-        )
\ No newline at end of file
+        )