diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index de593e3..ed06dbe 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -19,6 +19,8 @@ updates:
     System:
       patterns:
         - "System*"
+      exclude-patterns:
+        - "System.IdentityModel*"
     Extensions:
       patterns:
         - "Microsoft.Extensions*"