diff --git a/src/Gemstone.Security/Gemstone.Security.csproj b/src/Gemstone.Security/Gemstone.Security.csproj
index eef950d2..0e3bafa9 100644
--- a/src/Gemstone.Security/Gemstone.Security.csproj
+++ b/src/Gemstone.Security/Gemstone.Security.csproj
@@ -63,7 +63,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.Negotiate" Version="9.0.4" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.Negotiate" Version="9.0.18" />
     <PackageReference Include="System.DirectoryServices" Version="8.0.0" />
 
     <ProjectReference Include="..\..\..\common\src\Gemstone\Gemstone.Common.csproj" Condition="'$(Configuration)'=='Development'" />