diff --git a/source/Directory.Packages.props b/source/Directory.Packages.props
index 3a919b3..271aa42 100644
--- a/source/Directory.Packages.props
+++ b/source/Directory.Packages.props
@@ -4,8 +4,8 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="MailKit" Version="4.15.1" />
-    <PackageVersion Include="MimeKit" Version="4.15.1" />
+    <PackageVersion Include="MailKit" Version="4.17.0" />
+    <PackageVersion Include="MimeKit" Version="4.17.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="10.0.3" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Abstractions" Version="10.0.3" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Abstractions" Version="10.0.3" />