diff --git a/test/parallel/test-webcrypto-sign-verify-ecdsa.js b/test/parallel/test-webcrypto-sign-verify-ecdsa.js
index 072485cca59f7f..8fbf572ef5c64e 100644
--- a/test/parallel/test-webcrypto-sign-verify-ecdsa.js
+++ b/test/parallel/test-webcrypto-sign-verify-ecdsa.js
@@ -227,10 +227,11 @@ async function testSign({ name,
 (async function() {
   const variations = [];
 
-  vectors.forEach((vector) => {
+  for (let i = 0; i < vectors.length; ++i) {
+    const vector = vectors[i];
     variations.push(testVerify(vector));
     variations.push(testSign(vector));
-  });
+  }
 
   await Promise.all(variations);
 })().then(common.mustCall());