diff --git a/src/DShop.Services.Notifications/DShop.Services.Notifications.csproj b/src/DShop.Services.Notifications/DShop.Services.Notifications.csproj
index e84833b..7781ba9 100644
--- a/src/DShop.Services.Notifications/DShop.Services.Notifications.csproj
+++ b/src/DShop.Services.Notifications/DShop.Services.Notifications.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="DShop.Common_" Version="2.0.5" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="MailKit" Version="2.1.5.1" />
+    <PackageReference Include="MailKit" Version="4.16.0" />
     <PackageReference Include="OpenTracing.Contrib.NetCore" Version="0.5.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file