diff --git a/Directory.Packages.props b/Directory.Packages.props
index 4354c5e..decf2f3 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -4,8 +4,8 @@
   </PropertyGroup>
   <ItemGroup>
     <!-- MailKit / MimeKit -->
-    <PackageVersion Include="MailKit" Version="4.17.0" />
-    <PackageVersion Include="MimeKit" Version="4.17.0" />
+    <PackageVersion Include="MailKit" Version="4.18.0" />
+    <PackageVersion Include="MimeKit" Version="4.18.1" />
     <!-- HTTP Resilience -->
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.10.0" />
     <!-- Azure -->