diff --git a/polygon/rest/models/snapshot.py b/polygon/rest/models/snapshot.py
index ceb5f7f8..3d38abe2 100644
--- a/polygon/rest/models/snapshot.py
+++ b/polygon/rest/models/snapshot.py
@@ -308,6 +308,8 @@ class UniversalSnapshotSession:
     change_percent: Optional[float] = None
     early_trading_change: Optional[float] = None
     early_trading_change_percent: Optional[float] = None
+    regular_trading_change: Optional[float] = None
+    regular_trading_change_percent: Optional[float] = None
     late_trading_change: Optional[float] = None
     late_trading_change_percent: Optional[float] = None
     open: Optional[float] = None