diff --git a/Server/Core/Helper/Helper.cs b/Server/Core/Helper/Helper.cs
index 3d7013b8..2d780e8c 100644
--- a/Server/Core/Helper/Helper.cs
+++ b/Server/Core/Helper/Helper.cs
@@ -29,9 +29,11 @@ public static string GetRandomName(int length)
 
         public static Image CByteToImg(byte[] img)
         {
-            MemoryStream ms = new MemoryStream(img, 0, img.Length);
-            ms.Write(img, 0, img.Length);
-            return Image.FromStream(ms, true);
+            using (MemoryStream ms = new MemoryStream(img, 0, img.Length))
+            {
+                ms.Write(img, 0, img.Length);
+                return Image.FromStream(ms, true);
+            }
         }
 
         public static string GetFileSize(long size)