diff --git a/openstackdocstheme/page_context.py b/openstackdocstheme/page_context.py
index cedccaf7..9d91bb3c 100644
--- a/openstackdocstheme/page_context.py
+++ b/openstackdocstheme/page_context.py
@@ -27,7 +27,7 @@ LOG = logging.getLogger(__name__)
 
 _timeint = int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
 _default_last_updated = datetime.datetime.fromtimestamp(
-    _timeint, tz=datetime.timezone.utc
+    _timeint, tz=datetime.UTC
 ).replace(tzinfo=None)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 11680f6e..0cbd4778 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ authors = [
 readme = {file = "README.rst", content-type = "text/x-rst"}
 license = {text = "Apache-2.0"}
 dynamic = ["version", "dependencies"]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 classifiers = [
     "Environment :: OpenStack",
     "Intended Audience :: Information Technology",
@@ -20,10 +20,10 @@ classifiers = [
     "Operating System :: POSIX :: Linux",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Topic :: Documentation",
     "Typing :: Typed",
 ]
@@ -43,7 +43,7 @@ script-files = [
 ]
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.11"
 show_column_numbers = true
 show_error_context = true
 strict = true
diff --git a/releasenotes/notes/drop-python-3.10-9251b25112555957.yaml b/releasenotes/notes/drop-python-3.10-9251b25112555957.yaml
new file mode 100644
index 00000000..43993ccc
--- /dev/null
+++ b/releasenotes/notes/drop-python-3.10-9251b25112555957.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Support for Python 3.10 has been dropped. The minimum version of Python now
+    supported is 3.11.