diff --git a/src/Exceptionless.Insulation/Exceptionless.Insulation.csproj b/src/Exceptionless.Insulation/Exceptionless.Insulation.csproj
index 572142569a..734aa1fb52 100644
--- a/src/Exceptionless.Insulation/Exceptionless.Insulation.csproj
+++ b/src/Exceptionless.Insulation/Exceptionless.Insulation.csproj
@@ -19,6 +19,8 @@
     <PackageReference Include="Serilog.Settings.Configuration" Version="10.0.1" />
     <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
     <PackageReference Include="Serilog.Sinks.ExceptionLess" Version="5.0.0" />
+    <!-- MimeKit (via MailKit) allows 10.0.0, which has GHSA-2fmv-rv2c-59x7 and GHSA-846f-f764-76mx. -->
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="10.0.13" />
     <PackageReference Include="YamlDotNet" Version="18.1.0" />
   </ItemGroup>
   <ItemGroup>