diff --git a/src/libraries/NetCoreAppLibrary.props b/src/libraries/NetCoreAppLibrary.props
index c09bc22ea7c1df..e016534d70af44 100644
--- a/src/libraries/NetCoreAppLibrary.props
+++ b/src/libraries/NetCoreAppLibrary.props
@@ -223,6 +223,7 @@
       Microsoft.Extensions.Options.DataAnnotations;
       Microsoft.Extensions.Primitives;
       System.Diagnostics.EventLog;
+      System.Formats.Cbor;
       System.Security.Cryptography.Xml;
       System.Threading.AccessControl;
       System.Threading.RateLimiting;