diff --git a/lib/internal/bootstrap/loaders.js b/lib/internal/bootstrap/loaders.js
index af4928cc6163d1..00776029f926f3 100644
--- a/lib/internal/bootstrap/loaders.js
+++ b/lib/internal/bootstrap/loaders.js
@@ -255,8 +255,7 @@ if (config.exposeInternals) {
   };
 
   NativeModule.isInternal = function(id) {
-    return id.startsWith('internal/') ||
-        (id === 'worker_threads' && !config.experimentalWorker);
+    return id.startsWith('internal/');
   };
 }
 
diff --git a/lib/internal/bootstrap/node.js b/lib/internal/bootstrap/node.js
index 516ea86738a66b..12001476e83621 100644
--- a/lib/internal/bootstrap/node.js
+++ b/lib/internal/bootstrap/node.js
@@ -179,9 +179,7 @@ function startup() {
     setupQueueMicrotask();
   }
 
-  if (getOptionValue('--experimental-worker')) {
-    setupDOMException();
-  }
+  setupDOMException();
 
   // On OpenBSD process.execPath will be relative unless we
   // get the full path before process.execPath is used.
diff --git a/lib/internal/modules/cjs/helpers.js b/lib/internal/modules/cjs/helpers.js
index fcb536c3df3738..1a2a91c509b011 100644
--- a/lib/internal/modules/cjs/helpers.js
+++ b/lib/internal/modules/cjs/helpers.js
@@ -9,8 +9,6 @@ const {
   CHAR_HASH,
 } = require('internal/constants');
 
-const { getOptionValue } = require('internal/options');
-
 // Invoke with makeRequireFunction(module) where |module| is the Module object
 // to use as the context for the require() function.
 function makeRequireFunction(mod) {
@@ -100,14 +98,9 @@ const builtinLibs = [
   'dgram', 'dns', 'domain', 'events', 'fs', 'http', 'http2', 'https', 'net',
   'os', 'path', 'perf_hooks', 'punycode', 'querystring', 'readline', 'repl',
   'stream', 'string_decoder', 'tls', 'trace_events', 'tty', 'url', 'util',
-  'v8', 'vm', 'zlib'
+  'v8', 'vm', 'worker_threads', 'zlib'
 ];
 
-if (getOptionValue('--experimental-worker')) {
-  builtinLibs.push('worker_threads');
-  builtinLibs.sort();
-}
-
 if (typeof internalBinding('inspector').open === 'function') {
   builtinLibs.push('inspector');
   builtinLibs.sort();
diff --git a/src/node_config.cc b/src/node_config.cc
index 4ff62b9c114c38..384872cc0092b7 100644
--- a/src/node_config.cc
+++ b/src/node_config.cc
@@ -89,9 +89,6 @@ static void Initialize(Local<Object> target,
   if (env->options()->experimental_vm_modules)
     READONLY_TRUE_PROPERTY(target, "experimentalVMModules");
 
-  if (env->options()->experimental_worker)
-    READONLY_TRUE_PROPERTY(target, "experimentalWorker");
-
   if (env->options()->experimental_repl_await)
     READONLY_TRUE_PROPERTY(target, "experimentalREPLAwait");
 
diff --git a/src/node_options.cc b/src/node_options.cc
index 979b53e25a9119..f4639907e81ee5 100644
--- a/src/node_options.cc
+++ b/src/node_options.cc
@@ -109,10 +109,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
             "experimental ES Module support in vm module",
             &EnvironmentOptions::experimental_vm_modules,
             kAllowedInEnvironment);
-  AddOption("--experimental-worker",
-            "experimental threaded Worker support",
-            &EnvironmentOptions::experimental_worker,
-            kAllowedInEnvironment);
+  AddOption("--experimental-worker", "", NoOp{}, kAllowedInEnvironment);
   AddOption("--expose-internals", "", &EnvironmentOptions::expose_internals);
   AddOption("--http-parser",
             "Select which HTTP parser to use; either 'legacy' or 'llhttp' "
diff --git a/src/node_options.h b/src/node_options.h
index 87a674b0055c32..aae3743306d50c 100644
--- a/src/node_options.h
+++ b/src/node_options.h
@@ -96,7 +96,6 @@ class EnvironmentOptions : public Options {
   bool experimental_modules = false;
   bool experimental_repl_await = false;
   bool experimental_vm_modules = false;
-  bool experimental_worker = true;
   bool expose_internals = false;
   std::string http_parser =
 #ifdef NODE_EXPERIMENTAL_HTTP_DEFAULT