diff --git a/TelerikMvcWebMail/TelerikMvcWebMail.csproj b/TelerikMvcWebMail/TelerikMvcWebMail.csproj
index 04b22d5..a5dd274 100644
--- a/TelerikMvcWebMail/TelerikMvcWebMail.csproj
+++ b/TelerikMvcWebMail/TelerikMvcWebMail.csproj
@@ -61,7 +61,7 @@
       <HintPath>..\packages\EntityFramework.6.4.4\lib\net45\EntityFramework.SqlServer.dll</HintPath>
     </Reference>
     <Reference Include="Kendo.Mvc">
-      <HintPath>..\packages\Telerik.UI.for.AspNet.Mvc5.2025.1.227\lib\net45\Kendo.Mvc.dll</HintPath>
+      <HintPath>..\packages\Telerik.UI.for.AspNet.Mvc5.2025.4.1111\lib\net45\Kendo.Mvc.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.13.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
diff --git a/TelerikMvcWebMail/Views/Shared/_Layout.cshtml b/TelerikMvcWebMail/Views/Shared/_Layout.cshtml
index 57b7f02..6723518 100644
--- a/TelerikMvcWebMail/Views/Shared/_Layout.cshtml
+++ b/TelerikMvcWebMail/Views/Shared/_Layout.cshtml
@@ -23,7 +23,7 @@
 
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
 
-    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/themes/10.2.0/bootstrap/bootstrap-main.css">
+    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/themes/deelop/bootstrap/bootstrap-main.css">
     <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
 
     @Styles.Render("~/Content/css")
@@ -31,9 +31,9 @@
     @RenderSection("PageStylesPartial", false)
 
     <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
-    <script src="https://kendo.cdn.telerik.com/2025.1.227/js/kendo.all.min.js"></script>
-    <script src="https://kendo.cdn.telerik.com/2025.1.227/js/kendo.aspnetmvc.min.js"></script>
-    <script src="https://kendo.cdn.telerik.com/2025.1.227/js/kendo.timezones.min.js"></script>
+    <script src="https://kendo.cdn.telerik.com/2025.4.1111/js/kendo.all.min.js"></script>
+    <script src="https://kendo.cdn.telerik.com/2025.4.1111/js/kendo.aspnetmvc.min.js"></script>
+    <script src="https://kendo.cdn.telerik.com/2025.4.1111/js/kendo.timezones.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/js-cookie/2.0.3/js.cookie.min.js"></script>
 
     <!-- Load Pako ZLIB library to enable PDF compression -->
diff --git a/TelerikMvcWebMail/Views/SignIn/SignIn.cshtml b/TelerikMvcWebMail/Views/SignIn/SignIn.cshtml
index d151360..49f2a89 100644
--- a/TelerikMvcWebMail/Views/SignIn/SignIn.cshtml
+++ b/TelerikMvcWebMail/Views/SignIn/SignIn.cshtml
@@ -8,15 +8,15 @@
     <title>SignIn</title>
     <link type="image/x-icon" href="~/favicon-progress.ico" rel="shortcut icon">
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
-    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/themes/10.2.0/bootstrap/bootstrap-main.css">
+    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/themes/deelop/bootstrap/bootstrap-main.css">
     <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
     <link type="text/css" href="~/Content/signIn.css" rel="stylesheet" />
 
     <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
 
-    <script src="https://kendo.cdn.telerik.com/2025.1.227/js/kendo.all.min.js"></script>
-    <script src="https://kendo.cdn.telerik.com/2025.1.227/js/kendo.aspnetmvc.min.js"></script>
-    <script src="https://kendo.cdn.telerik.com/2025.1.227/js/kendo.timezones.min.js"></script>
+    <script src="https://kendo.cdn.telerik.com/2025.4.1111/js/kendo.all.min.js"></script>
+    <script src="https://kendo.cdn.telerik.com/2025.4.1111/js/kendo.aspnetmvc.min.js"></script>
+    <script src="https://kendo.cdn.telerik.com/2025.4.1111/js/kendo.timezones.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/js-cookie/2.0.3/js.cookie.min.js"></script>
     @Scripts.Render("~/Scripts/sign-in.js")
 </head>
diff --git a/TelerikMvcWebMail/packages.config b/TelerikMvcWebMail/packages.config
index 22f7fcc..42dce63 100644
--- a/TelerikMvcWebMail/packages.config
+++ b/TelerikMvcWebMail/packages.config
@@ -58,6 +58,6 @@
   <package id="Telerik.FontIcons" version="4.0.0" targetFramework="net48" />
   <package id="Telerik.Licensing" version="1.4.15" targetFramework="net48" />
   <package id="Telerik.SvgIcons" version="4.0.0" targetFramework="net48" />
-  <package id="Telerik.UI.for.AspNet.Mvc5" version="2025.1.227" targetFramework="net45" />
+  <package id="Telerik.UI.for.AspNet.Mvc5" version="2025.4.1111" targetFramework="net45" />
   <package id="WebGrease" version="1.6.0" targetFramework="net45" />
 </packages>
\ No newline at end of file