diff --git a/test/core/debug/BUILD b/test/core/debug/BUILD
index 96c5457fcb4..55317ac01cc 100644
--- a/test/core/debug/BUILD
+++ b/test/core/debug/BUILD
@@ -26,6 +26,9 @@ grpc_cc_test(
         "gtest",
     ],
     language = "C++",
+    tags = [
+        "cpu:4",
+    ],
     uses_event_engine = False,
     uses_polling = False,
     deps = [