diff --git a/test/parallel/test-worker-fshandles-error-on-termination.js b/test/parallel/test-worker-fshandles-error-on-termination.js
index 72fb969963..ada99a991b 100644
--- a/test/parallel/test-worker-fshandles-error-on-termination.js
+++ b/test/parallel/test-worker-fshandles-error-on-termination.js
@@ -6,8 +6,8 @@ const fs = require('fs/promises');
 const { scheduler } = require('timers/promises');
 const { parentPort, Worker } = require('worker_threads');
 
-const MAX_ITERATIONS = 20;
-const MAX_THREADS = 10;
+const MAX_ITERATIONS = 5;
+const MAX_THREADS = 6;
 
 // Do not use isMainThread so that this test itself can be run inside a Worker.
 if (!process.env.HAS_STARTED_WORKER) {
diff --git a/test/parallel/test-worker-fshandles-open-close-on-termination.js b/test/parallel/test-worker-fshandles-open-close-on-termination.js
index 2cbd886b15..db7c0221fc 100644
--- a/test/parallel/test-worker-fshandles-open-close-on-termination.js
+++ b/test/parallel/test-worker-fshandles-open-close-on-termination.js
@@ -6,8 +6,8 @@ const fs = require('fs/promises');
 const { scheduler } = require('timers/promises');
 const { parentPort, Worker } = require('worker_threads');
 
-const MAX_ITERATIONS = 20;
-const MAX_THREADS = 10;
+const MAX_ITERATIONS = 5;
+const MAX_THREADS = 6;
 
 // Do not use isMainThread so that this test itself can be run inside a Worker.
 if (!process.env.HAS_STARTED_WORKER) {
diff --git a/test/parallel/test-worker-http2-stream-terminate.js b/test/parallel/test-worker-http2-stream-terminate.js
index 94e60e773c..a2a1c02003 100644
--- a/test/parallel/test-worker-http2-stream-terminate.js
+++ b/test/parallel/test-worker-http2-stream-terminate.js
@@ -11,8 +11,8 @@ const { Worker, parentPort } = require('worker_threads');
 // stream activity is ongoing, in particular the C++ function
 // ReportWritesToJSStreamListener::OnStreamAfterReqFinished.
 
-const MAX_ITERATIONS = 20;
-const MAX_THREADS = 10;
+const MAX_ITERATIONS = 5;
+const MAX_THREADS = 6;
 
 // Do not use isMainThread so that this test itself can be run inside a Worker.
 if (!process.env.HAS_STARTED_WORKER) {