diff --git a/src/dotnet/Directory.Packages.props b/src/dotnet/Directory.Packages.props
index 1ccd5296..c2b23d66 100644
--- a/src/dotnet/Directory.Packages.props
+++ b/src/dotnet/Directory.Packages.props
@@ -15,7 +15,7 @@
     <PackageVersion Include="Cocoar.SignalARRR.Server" Version="4.3.0" />
     <!-- Microsoft packages -->
     <PackageVersion Include="Fido2.AspNet" Version="4.0.1" />
-    <PackageVersion Include="MailKit" Version="4.16.0" />
+    <PackageVersion Include="MailKit" Version="4.17.0" />
     <PackageVersion Include="Postmark" Version="5.3.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.8" />
     <PackageVersion Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="10.0.8" />