diff --git a/py34/list.py b/py34/list.py
index 2d46627..b02cc16 100644
--- a/py34/list.py
+++ b/py34/list.py
@@ -2,7 +2,7 @@ from .post import Post
 from .scraper import scraper, ScraperException, CaptchaException
 from .url import parse_thumbnail_url
 from .dockid import is_nochick, is_toodeep, is_captcha
-from .thread import Pool
+from concurrent.futures import ThreadPoolExecutor
 import urllib.parse
 from retry import retry
 
@@ -60,10 +60,9 @@ class List:
 
             # Download thumbnails
             if fetch_thumbnails:
-                pool = Pool()
-                for post in self.posts:
-                    pool.submit(Post.get_thumbnail_data, post)
-                pool.join()
+                with ThreadPoolExecutor(max_workers=5) as pool:
+                    for post in self.posts:
+                        pool.submit(Post.get_thumbnail_data, post)
 
         except ScraperException as ex:
             raise ex
diff --git a/py34/thread.py b/py34/thread.py
deleted file mode 100644
index a15b37b..0000000
--- a/py34/thread.py
+++ /dev/null
@@ -1,37 +0,0 @@
-from threading import Thread
-from typing import Callable
-
-
-class Pool:
-    def __init__(self, max_workers: int = 5):
-        self.max_workers = max_workers
-        self.jobs: list[Thread] = []
-        self.workers: list[Thread] = []
-
-    def submit(self, func: Callable, *vargs, **kwargs):
-        def proc(self, func: Callable, *vargs, **kwargs):
-            func(*vargs, **kwargs)
-            self._pool_proc()
-
-        self.jobs.append(Thread(
-            target = proc,
-            args = (self, func, *vargs, ),
-            kwargs = kwargs
-        ))
-
-        self._pool_proc()
-
-    def join(self):
-        while len(self.workers) != 0:
-            self.workers[-1].join()
-            self._pool_proc()
-
-    def _pool_proc(self):
-        # Remove any dead workers
-        self.workers = list(filter(Thread.is_alive, self.workers))
-
-        # Process jobs if any
-        while len(self.workers) < self.max_workers and len(self.jobs) != 0:
-            job = self.jobs.pop()
-            job.start()
-            self.workers.append(job)