diff --git a/uic-addin.csproj b/uic-addin.csproj
index 3d318f2..4e3aa9e 100644
--- a/uic-addin.csproj
+++ b/uic-addin.csproj
@@ -42,7 +42,7 @@
     <PackageReference Include="Microsoft.Bcl.HashCode" Version="6.0.0" />
     <PackageReference Include="Microsoft.Extensions.Primitives" Version="9.0.8" />
     <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.135" />
-    <PackageReference Include="MimeKit" Version="4.13.0" />
+    <PackageReference Include="MimeKit" Version="4.15.1" />
     <PackageReference Include="Octokit" Version="14.0.0" />
     <PackageReference Include="ProEvergreen" Version="3.0.0" />
     <PackageReference Include="ReactiveProperty" Version="9.7.0" />