diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3af9d63..e9485f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 4.0.0rc3 - 2023-07-03
+
+### Changed
+- Change `User-Agent`
+
+### Updated 
+- Fixed `modify_order` (`PUT /fapi/v1/order`) Endpoint by correctly adding the `price` parameter 
+
 ## 4.0.0rc2 - 2023-05-25
 
 ### Added
diff --git a/binance/__version__.py b/binance/__version__.py
index 1e47087..76465df 100644
--- a/binance/__version__.py
+++ b/binance/__version__.py
@@ -1 +1 @@
-__version__ = "4.0.0rc2"
+__version__ = "4.0.0rc3"
diff --git a/binance/api.py b/binance/api.py
index 6bf85eb..245c70f 100644
--- a/binance/api.py
+++ b/binance/api.py
@@ -46,7 +46,7 @@ def __init__(
         self.session.headers.update(
             {
                 "Content-Type": "application/json;charset=utf-8",
-                "User-Agent": "binance-connector/" + __version__,
+                "User-Agent": "binance-futures-connector-python/" + __version__,
                 "X-MBX-APIKEY": key,
             }
         )
diff --git a/binance/um_futures/account.py b/binance/um_futures/account.py
index ff8a5ce..bf94291 100644
--- a/binance/um_futures/account.py
+++ b/binance/um_futures/account.py
@@ -195,6 +195,7 @@ def modify_order(
             "side": side,
             "quantity": quantity,
             "orderId": orderId,
+            "price": price,
             **kwargs,
         }
     else:
@@ -203,6 +204,7 @@ def modify_order(
             "side": side,
             "quantity": quantity,
             "origClientOrderId": origClientOrderId,
+            "price": price,
             **kwargs,
         }