diff --git a/LuminousSales/LuminousSales/LuminousSales.csproj b/LuminousSales/LuminousSales/LuminousSales.csproj
index 983efc4..a5c4aff 100644
--- a/LuminousSales/LuminousSales/LuminousSales.csproj
+++ b/LuminousSales/LuminousSales/LuminousSales.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/LuminousSales/Models/Models/Deal.cs b/LuminousSales/Models/Models/Deal.cs
index fb87625..bd8e485 100644
--- a/LuminousSales/Models/Models/Deal.cs
+++ b/LuminousSales/Models/Models/Deal.cs
@@ -9,7 +9,17 @@ namespace Models.Models
         public User User { get; set; }
         public ICollection<Product> ProductsADeal { get; set; }
         public double Amount { get; set; }
-        [Timestamp]
-        public byte[] Time { get; set; }
+
+        private byte[] time;
+
+        public byte[] GetTime()
+        {
+            return time;
+        }
+
+        public void SetTime(byte[] value)
+        {
+            time = value;
+        }
     }
 }
\ No newline at end of file
diff --git a/LuminousSales/Models/Models/Interfaces/IBaseSalesProperties.cs b/LuminousSales/Models/Models/Interfaces/IBaseSalesProperties.cs
index 2ee3472..16a06af 100644
--- a/LuminousSales/Models/Models/Interfaces/IBaseSalesProperties.cs
+++ b/LuminousSales/Models/Models/Interfaces/IBaseSalesProperties.cs
@@ -10,6 +10,8 @@ namespace Models.Models.Interfaces
         User User { get; set; }
         ICollection<Product> ProductsADeal { get; set;}
         double Amount { get; set; }
-        public byte[] Time { get; set; }
+
+        byte[] GetTime();
+        void SetTime(byte[] value);
     }
 }
diff --git a/LuminousSales/Models/Models/Stock.cs b/LuminousSales/Models/Models/Stock.cs
index 1d6e4cb..dd36642 100644
--- a/LuminousSales/Models/Models/Stock.cs
+++ b/LuminousSales/Models/Models/Stock.cs
@@ -11,7 +11,17 @@ namespace Models.Models
         public User User { get; set; }
         public ICollection<Product> ProductsADeal { get; set; }
         public double Amount { get; set; }
-        [Timestamp]
-        public byte[] Time { get; set; }
+
+        private byte[] time;
+
+        public byte[] GetTime()
+        {
+            return time;
+        }
+
+        public void SetTime(byte[] value)
+        {
+            time = value;
+        }
     }
 }