diff --git a/Directory.Packages.props b/Directory.Packages.props
index 45d78c97..3fc76a31 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -101,7 +101,7 @@
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.11.2" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.401" />
     <PackageVersion Include="Microsoft.VisualStudio.DiagnosticsHub.BenchmarkDotNetDiagnosers" Version="18.7.37220.1" />
-    <PackageVersion Include="MimeKit" Version="4.17.0" />
+    <PackageVersion Include="MimeKit" Version="4.18.0" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="OrchardCore.Application.Cms.Targets" Version="3.0.1" />
     <PackageVersion Include="SafeWebCore" Version="1.7.0" />