diff --git a/test/parallel/test-benchmark-node-bench-tools.js b/test/sequential/test-benchmark-node-bench-tools.js
similarity index 98%
rename from test/parallel/test-benchmark-node-bench-tools.js
rename to test/sequential/test-benchmark-node-bench-tools.js
index 3d248b45c0e3..84ec4223b52c 100644
--- a/test/parallel/test-benchmark-node-bench-tools.js
+++ b/test/sequential/test-benchmark-node-bench-tools.js
@@ -1,6 +1,9 @@
 // Flags: --no-warnings
 'use strict';
 
+// This test and its subprocesses allocate large, high-precision histograms.
+// Run sequentially to avoid exhausting memory on constrained CI hosts.
+
 require('../common');
 const assert = require('assert');
 const { spawnSync } = require('child_process');