diff --git a/Web/QueryTree.csproj b/Web/QueryTree.csproj
index 49ca022..263eba0 100644
--- a/Web/QueryTree.csproj
+++ b/Web/QueryTree.csproj
@@ -42,7 +42,7 @@
     <PackageReference Include="MySql.Data" Version="8.0.31" />
     <PackageReference Include="Hangfire" Version="1.7.32" />
     <PackageReference Include="SSH.NET" Version="2020.0.2" />
-    <PackageReference Include="MailKit" Version="2.1.3" />
+    <PackageReference Include="MailKit" Version="4.16.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.11">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>