diff --git a/src/NzbDrone.Core/Prowlarr.Core.csproj b/src/NzbDrone.Core/Prowlarr.Core.csproj
index 8f7b485f4..9056ee4cd 100644
--- a/src/NzbDrone.Core/Prowlarr.Core.csproj
+++ b/src/NzbDrone.Core/Prowlarr.Core.csproj
@@ -6,7 +6,7 @@
     <PackageReference Include="AngleSharp.Xml" Version="1.0.0" />
     <PackageReference Include="Dapper" Version="2.0.151" />
     <PackageReference Include="Diacritical.Net" Version="1.0.4" />
-    <PackageReference Include="MailKit" Version="3.6.0" />
+    <PackageReference Include="MailKit" Version="4.8.0" />
     <PackageReference Include="Microsoft.AspNetCore.Cryptography.KeyDerivation" Version="6.0.35" />
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="2.2.0" />
     <PackageReference Include="NLog.Targets.Syslog" Version="7.0.0" />