diff --git a/docs/conf.py b/docs/conf.py
index e335e73c..77c49bcb 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -2,12 +2,7 @@ import datetime
 import os
 import sys
 import time
-
-if sys.version_info >= (3, 11):
-    import tomllib
-else:
-    import tomli as tomllib
-
+import tomllib
 
 sys.path.append(os.path.abspath(os.pardir))
 
@@ -32,7 +27,7 @@ source_suffix = ".rst"
 master_doc = "index"
 project = project_data.get("name").upper()
 year = datetime.datetime.fromtimestamp(
-    int(os.environ.get("SOURCE_DATE_EPOCH", time.time())), datetime.timezone.utc
+    int(os.environ.get("SOURCE_DATE_EPOCH", time.time())), datetime.UTC
 ).year
 project_copyright = f"2010–{year}"  # noqa: RUF001
 exclude_patterns = ["_build"]
diff --git a/pelican/contents.py b/pelican/contents.py
index 8494145a..3d9e086c 100644
--- a/pelican/contents.py
+++ b/pelican/contents.py
@@ -590,7 +590,7 @@ class Article(Content):
             if self.date.tzinfo is None:
                 now = datetime.datetime.now()
             else:
-                now = datetime.datetime.now(datetime.timezone.utc)
+                now = datetime.datetime.now(datetime.UTC)
             if self.date > now:
                 self.status = "draft"
 
diff --git a/pelican/tests/test_utils.py b/pelican/tests/test_utils.py
index 2d370c64..b5a53eac 100644
--- a/pelican/tests/test_utils.py
+++ b/pelican/tests/test_utils.py
@@ -2,7 +2,7 @@ import locale
 import logging
 import os
 import shutil
-from datetime import timezone
+from datetime import UTC
 from sys import platform
 from tempfile import mkdtemp
 
@@ -62,7 +62,7 @@ class TestUtils(LoggedTestCase):
         date = utils.SafeDatetime(year=2012, month=11, day=22)
         date_hour = utils.SafeDatetime(year=2012, month=11, day=22, hour=22, minute=11)
         date_hour_z = utils.SafeDatetime(
-            year=2012, month=11, day=22, hour=22, minute=11, tzinfo=timezone.utc
+            year=2012, month=11, day=22, hour=22, minute=11, tzinfo=UTC
         )
         date_hour_wib = utils.SafeDatetime(
             year=2012,
@@ -82,7 +82,7 @@ class TestUtils(LoggedTestCase):
             hour=22,
             minute=11,
             second=10,
-            tzinfo=timezone.utc,
+            tzinfo=UTC,
         )
         date_hour_sec_wib = utils.SafeDatetime(
             year=2012,
@@ -101,7 +101,7 @@ class TestUtils(LoggedTestCase):
             minute=11,
             second=10,
             microsecond=123000,
-            tzinfo=timezone.utc,
+            tzinfo=UTC,
         )
         dates = {
             "2012-11-22": date,
diff --git a/pelican/tools/pelican_import.py b/pelican/tools/pelican_import.py
index bd349ac9..1c03f9c9 100755
--- a/pelican/tools/pelican_import.py
+++ b/pelican/tools/pelican_import.py
@@ -446,13 +446,13 @@ def tumblr2fields(api_key, blogname):
             slug = post.get("slug") or slugify(title, regex_subs=subs)
             tags = post.get("tags")
             timestamp = post.get("timestamp")
-            date = SafeDatetime.fromtimestamp(
-                int(timestamp), tz=datetime.timezone.utc
-            ).strftime("%Y-%m-%d %H:%M:%S%z")
+            date = SafeDatetime.fromtimestamp(int(timestamp), tz=datetime.UTC).strftime(
+                "%Y-%m-%d %H:%M:%S%z"
+            )
             slug = (
-                SafeDatetime.fromtimestamp(
-                    int(timestamp), tz=datetime.timezone.utc
-                ).strftime("%Y-%m-%d-")
+                SafeDatetime.fromtimestamp(int(timestamp), tz=datetime.UTC).strftime(
+                    "%Y-%m-%d-"
+                )
                 + slug
             )
             post_format = post.get("format")
diff --git a/requirements/docs.pip b/requirements/docs.pip
index 4c16c84a..4684ff8e 100644
--- a/requirements/docs.pip
+++ b/requirements/docs.pip
@@ -3,4 +3,3 @@ sphinxext-opengraph
 furo==2023.9.10
 livereload
 matplotlib
-tomli;python_version<"3.11"