diff --git a/tools/benchmark.py b/tools/benchmark.py
index 9485d79f4adec..9f6a750bb2355 100755
--- a/tools/benchmark.py
+++ b/tools/benchmark.py
@@ -26,8 +26,10 @@
     ("cold_hello", ["run", "--reload", "cli/tests/002_hello.ts"]),
     ("cold_relative_import",
      ["run", "--reload", "cli/tests/003_relative_import.ts"]),
-    ("workers_startup", ["run", "cli/tests/workers_startup_bench.ts"]),
-    ("workers_round_robin", ["run", "cli/tests/workers_round_robin_bench.ts"]),
+    ("workers_startup",
+     ["run", "--allow-read", "cli/tests/workers_startup_bench.ts"]),
+    ("workers_round_robin",
+     ["run", "--allow-read", "cli/tests/workers_round_robin_bench.ts"]),
     ("text_decoder", ["run", "cli/tests/text_decoder_perf.js"]),
     ("text_encoder", ["run", "cli/tests/text_encoder_perf.js"]),
 ]