diff --git a/OpenSim/Region/CoreModules/OpenSim.Region.CoreModules.csproj b/OpenSim/Region/CoreModules/OpenSim.Region.CoreModules.csproj
index 164631ebb1..5a04762ee2 100644
--- a/OpenSim/Region/CoreModules/OpenSim.Region.CoreModules.csproj
+++ b/OpenSim/Region/CoreModules/OpenSim.Region.CoreModules.csproj
@@ -68,8 +68,8 @@
   <ItemGroup>
     <PackageReference Include="Ionic.Zlib.Core" Version="1.0.0" />
     <PackageReference Include="log4net" Version="3.2.0" />
-    <PackageReference Include="MailKit" Version="4.14.1" />
-    <PackageReference Include="MimeKit" Version="4.14.0" />
+    <PackageReference Include="MailKit" Version="4.16.0" />
+    <PackageReference Include="MimeKit" Version="4.16.0" />
     <PackageReference Include="Mono.Addins" Version="1.4.1" />
     <PackageReference Include="Mono.Addins.CecilReflector" Version="1.4.1" />
     <PackageReference Include="MySqlConnector" Version="2.4.0" />