diff --git a/SendGridMail.MailKit/SendGridMail.MailKit.csproj b/SendGridMail.MailKit/SendGridMail.MailKit.csproj
index 9f47ef4..78b81cf 100644
--- a/SendGridMail.MailKit/SendGridMail.MailKit.csproj
+++ b/SendGridMail.MailKit/SendGridMail.MailKit.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MailKit" Version="3.1.1" />
+    <PackageReference Include="MailKit" Version="4.16.0" />
   </ItemGroup>
   
 </Project>