diff --git a/app.py b/app.py
index deedefc..bea1e78 100644
--- a/app.py
+++ b/app.py
@@ -1,9 +1,10 @@
 import os
+from pathlib import Path
 
 from dotenv import load_dotenv
 
-dotenv_path = os.path.join(os.path.dirname(__file__), '.env')
-if os.path.exists(dotenv_path):
+dotenv_path = Path(__file__).resolve().parent / '.env'
+if dotenv_path.exists():
     load_dotenv(dotenv_path)
 
 from greybook import create_app  # noqa
diff --git a/greybook/blueprints/admin.py b/greybook/blueprints/admin.py
index cce140f..b0df347 100644
--- a/greybook/blueprints/admin.py
+++ b/greybook/blueprints/admin.py
@@ -1,5 +1,3 @@
-import os
-
 from flask import Blueprint, abort, current_app, flash, redirect, render_template, request, url_for
 from flask_ckeditor import upload_fail, upload_success
 from flask_login import current_user, login_required
@@ -280,6 +278,6 @@ def upload_image():
     if not allowed_file(f.filename):
         return upload_fail('Image only!')
     filename = random_filename(f.filename)
-    f.save(os.path.join(current_app.config['GREYBOOK_UPLOAD_PATH'], filename))
+    f.save(current_app.config['GREYBOOK_UPLOAD_PATH'] / filename)
     url = url_for('blog.get_image', filename=filename)
     return upload_success(url, filename)
diff --git a/greybook/core/commands.py b/greybook/core/commands.py
index eb729d9..7d2ae23 100644
--- a/greybook/core/commands.py
+++ b/greybook/core/commands.py
@@ -1,5 +1,3 @@
-import os
-
 import click
 from flask import current_app
 from sqlalchemy import select
@@ -56,9 +54,9 @@ def init_blog_command(username, password):
 
         db.session.commit()
 
-        upload_path = os.path.join(current_app.config['GREYBOOK_UPLOAD_PATH'])
-        if not os.path.exists(upload_path):
-            os.makedirs(upload_path)
+        upload_path = current_app.config['GREYBOOK_UPLOAD_PATH']
+        if not upload_path.exists():
+            upload_path.mkdir(parents=True, exist_ok=True)
             click.echo('Created the upload folder.')
 
     @app.cli.command('lorem')
diff --git a/greybook/models.py b/greybook/models.py
index d94216b..f5c7883 100644
--- a/greybook/models.py
+++ b/greybook/models.py
@@ -1,4 +1,3 @@
-import os
 import re
 from datetime import datetime, timezone
 from typing import List, Optional
@@ -88,9 +87,9 @@ def delete(self):
         upload_url = url_for('blog.get_image', filename='')
         images = re.findall(rf'<img.*?src="{upload_url}(.*?)"', self.body)
         for image in images:
-            file_path = os.path.join(upload_path, image)
-            if os.path.exists(file_path):
-                os.remove(file_path)
+            file_path = upload_path / image
+            if file_path.exists():
+                file_path.unlink()
         db.session.delete(self)
         db.session.commit()
 
diff --git a/greybook/utils.py b/greybook/utils.py
index 2f170dd..65b97cf 100644
--- a/greybook/utils.py
+++ b/greybook/utils.py
@@ -1,5 +1,5 @@
-import os
 import uuid
+from pathlib import Path
 from urllib.parse import urljoin, urlparse
 
 from flask import current_app, redirect, request, url_for
@@ -28,6 +28,6 @@ def allowed_file(filename):
 
 
 def random_filename(old_filename):
-    ext = os.path.splitext(old_filename)[1]
+    ext = Path(old_filename).suffix
     new_filename = uuid.uuid4().hex + ext
     return new_filename
diff --git a/tests/test_admin.py b/tests/test_admin.py
index a920f73..83ac7c7 100644
--- a/tests/test_admin.py
+++ b/tests/test_admin.py
@@ -1,5 +1,5 @@
-import os
-from unittest.mock import call, patch
+import pathlib
+from unittest.mock import patch
 
 from greybook.core.extensions import db
 from greybook.models import Category, Comment, Post
@@ -66,20 +66,19 @@ def test_delete_post(self):
         data = response.get_data(as_text=True)
         self.assertIn('Post deleted.', data)
 
-    @patch('os.remove')
-    @patch('os.path.exists')
-    def test_delete_post_with_images(self, mock_exists, mock_remove):
+    @patch('pathlib.Path.unlink')
+    @patch('pathlib.Path.exists')
+    def test_delete_post_with_images(self, mock_exists, mock_unlink):
+        mock_exists.return_value = True
+        mock_unlink.return_value = None
+
         post = db.session.get(Post, 1)
         post.body = '<img src="/uploads/test.png"> <img alt="" src="/uploads/test2.png">'
         db.session.commit()
 
-        image_path = os.path.join(self.app.config['GREYBOOK_UPLOAD_PATH'], 'test.png')
-        image_path2 = os.path.join(self.app.config['GREYBOOK_UPLOAD_PATH'], 'test2.png')
-
-        mock_exists.return_value = True
         self.client.post('/admin/post/1/delete')
-        self.assertEqual(os.remove.call_count, 2)
-        mock_remove.assert_has_calls([call(image_path), call(image_path2)])
+        self.assertEqual(pathlib.Path.unlink.call_count, 2)
+        self.assertEqual(pathlib.Path.exists.call_count, 2)
 
     def test_delete_comment(self):
         response = self.client.get('/admin/comment/1/delete', follow_redirects=True)