diff --git a/MailHandler/MailHandler.csproj b/MailHandler/MailHandler.csproj
index fcc2237..9d369df 100644
--- a/MailHandler/MailHandler.csproj
+++ b/MailHandler/MailHandler.csproj
@@ -10,7 +10,7 @@
     <PackageReference Include="CommandLineParser" Version="2.8.0" />
     <PackageReference Include="MailKit" Version="3.1.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
-    <PackageReference Include="MimeKit" Version="3.1.1" />
+    <PackageReference Include="MimeKit" Version="4.7.1" />
   </ItemGroup>
 
   <ItemGroup>