diff --git a/ft-app/Dockerfile b/ft-app/Dockerfile
index 2f2e976..1817013 100644
--- a/ft-app/Dockerfile
+++ b/ft-app/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.11-slim
+FROM python:3.13.11-slim
 
 WORKDIR /app
 
diff --git a/ft-app/app/routers/option_trades.py b/ft-app/app/routers/option_trades.py
index 11810af..c23d53b 100644
--- a/ft-app/app/routers/option_trades.py
+++ b/ft-app/app/routers/option_trades.py
@@ -116,8 +116,8 @@ def edit_trade(
     open_price: float = Form(...),
     open_fee: float = Form(0.0),
     close_date: str = Form(""),
-    close_price: float = Form(None),
-    close_fee: float = Form(None),
+    close_price: str = Form(""),
+    close_fee: str = Form(""),
     db: Session = Depends(get_db),
 ):
     t = db.query(OptionTrade).filter(OptionTrade.id == trade_id).first()
@@ -132,10 +132,10 @@ def edit_trade(
         t.open_date = date.fromisoformat(open_date)
         t.open_price = open_price
         t.open_fee = open_fee
-        if close_date and close_price is not None:
+        if close_date and close_price:
             t.close_date = date.fromisoformat(close_date)
-            t.close_price = close_price
-            t.close_fee = close_fee or 0
+            t.close_price = float(close_price)
+            t.close_fee = float(close_fee) if close_fee else 0.0
         db.commit()
     return RedirectResponse("/options/", status_code=303)
 
diff --git a/ft-app/app/routers/trades.py b/ft-app/app/routers/trades.py
index 50b4cd5..d07ad7a 100644
--- a/ft-app/app/routers/trades.py
+++ b/ft-app/app/routers/trades.py
@@ -119,8 +119,8 @@ def edit_trade(
     open_price: float = Form(...),
     open_fee: float = Form(0.0),
     close_date: str = Form(""),
-    close_price: float = Form(None),
-    close_fee: float = Form(None),
+    close_price: str = Form(""),
+    close_fee: str = Form(""),
     db: Session = Depends(get_db),
 ):
     t = db.query(Trade).filter(Trade.id == trade_id).first()
@@ -133,10 +133,10 @@ def edit_trade(
         t.open_date = date.fromisoformat(open_date)
         t.open_price = open_price
         t.open_fee = open_fee
-        if close_date and close_price is not None:
+        if close_date and close_price:
             t.close_date = date.fromisoformat(close_date)
-            t.close_price = close_price
-            t.close_fee = close_fee or 0
+            t.close_price = float(close_price)
+            t.close_fee = float(close_fee) if close_fee else 0.0
         db.commit()
     return RedirectResponse("/trades/", status_code=303)