diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66bb2047..1cd4ce23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,22 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 <!-- insertion marker -->
+## [1.16.3](https://github.com/mkdocstrings/python/releases/tag/1.16.3) - 2025-03-08
+
+<small>[Compare with 1.16.2](https://github.com/mkdocstrings/python/compare/1.16.2...1.16.3)</small>
+
+### Build
+
+- Depend on mkdocstrings 0.28.3 ([9fa4f16](https://github.com/mkdocstrings/python/commit/9fa4f1636af240bb695661b7172f052cb11e0ec9) by Timothée Mazzucotelli).
+
+### Bug Fixes
+
+- De-duplicate summary sections ([a657d07](https://github.com/mkdocstrings/python/commit/a657d07499eb82d22337c169aa86b1cdd85543fa) by Timothée Mazzucotelli). [Issue-134](https://github.com/mkdocstrings/python/issues/134)
+
+### Code Refactoring
+
+- Import from top-level `mkdocstrings` module ([da2ba13](https://github.com/mkdocstrings/python/commit/da2ba13b1367ce107416d08f382fb9f2384c015c) by Timothée Mazzucotelli).
+
 ## [1.16.2](https://github.com/mkdocstrings/python/releases/tag/1.16.2) - 2025-02-24
 
 <small>[Compare with 1.16.1](https://github.com/mkdocstrings/python/compare/1.16.1...1.16.2)</small>
diff --git a/pyproject.toml b/pyproject.toml
index e69145f9..cb429367 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ classifiers = [
     "Typing :: Typed",
 ]
 dependencies = [
-    "mkdocstrings>=0.28.2",
+    "mkdocstrings>=0.28.3",
     "mkdocs-autorefs>=1.4",
     "griffe>=0.49",
     "typing-extensions>=4.0; python_version < '3.11'",
diff --git a/scripts/make.py b/scripts/make.py
index 3d427296..a3b9e751 100755
--- a/scripts/make.py
+++ b/scripts/make.py
@@ -16,7 +16,7 @@
     from collections.abc import Iterator
 
 
-PYTHON_VERSIONS = os.getenv("PYTHON_VERSIONS", "3.9 3.10 3.11 3.12 3.13 3.14").split()
+PYTHON_VERSIONS = os.getenv("PYTHON_VERSIONS", "3.9 3.10 3.11 3.12 3.13").split()
 
 
 def shell(cmd: str, *, capture_output: bool = False, **kwargs: Any) -> str | None:
diff --git a/src/mkdocstrings_handlers/python/config.py b/src/mkdocstrings_handlers/python/config.py
index 6607d01c..a1ecdcd8 100644
--- a/src/mkdocstrings_handlers/python/config.py
+++ b/src/mkdocstrings_handlers/python/config.py
@@ -7,7 +7,7 @@
 from dataclasses import field, fields
 from typing import TYPE_CHECKING, Annotated, Any, Literal
 
-from mkdocstrings.loggers import get_logger
+from mkdocstrings import get_logger
 
 # YORE: EOL 3.10: Replace block with line 2.
 if sys.version_info >= (3, 11):
diff --git a/src/mkdocstrings_handlers/python/handler.py b/src/mkdocstrings_handlers/python/handler.py
index 0051be0f..d9db6669 100644
--- a/src/mkdocstrings_handlers/python/handler.py
+++ b/src/mkdocstrings_handlers/python/handler.py
@@ -22,9 +22,7 @@
     patch_loggers,
 )
 from mkdocs.exceptions import PluginError
-from mkdocstrings.handlers.base import BaseHandler, CollectionError, CollectorItem, HandlerOptions
-from mkdocstrings.inventory import Inventory
-from mkdocstrings.loggers import get_logger
+from mkdocstrings import BaseHandler, CollectionError, CollectorItem, HandlerOptions, Inventory, get_logger
 
 from mkdocstrings_handlers.python import rendering
 from mkdocstrings_handlers.python.config import PythonConfig, PythonOptions
diff --git a/src/mkdocstrings_handlers/python/rendering.py b/src/mkdocstrings_handlers/python/rendering.py
index d284567a..4b8a8ee4 100644
--- a/src/mkdocstrings_handlers/python/rendering.py
+++ b/src/mkdocstrings_handlers/python/rendering.py
@@ -29,7 +29,7 @@
 from jinja2 import TemplateNotFound, pass_context, pass_environment
 from markupsafe import Markup
 from mkdocs_autorefs import AutorefsHookInterface
-from mkdocstrings.loggers import get_logger
+from mkdocstrings import get_logger
 
 if TYPE_CHECKING:
     from collections.abc import Iterator, Sequence
@@ -37,7 +37,7 @@
     from griffe import Attribute, Class, Function, Module
     from jinja2 import Environment, Template
     from jinja2.runtime import Context
-    from mkdocstrings.handlers.base import CollectorItem
+    from mkdocstrings import CollectorItem
 
 logger = get_logger(__name__)
 
diff --git a/src/mkdocstrings_handlers/python/templates/material/_base/summary/attributes.html.jinja b/src/mkdocstrings_handlers/python/templates/material/_base/summary/attributes.html.jinja
index 8bc8cb60..3675eda7 100644
--- a/src/mkdocstrings_handlers/python/templates/material/_base/summary/attributes.html.jinja
+++ b/src/mkdocstrings_handlers/python/templates/material/_base/summary/attributes.html.jinja
@@ -7,15 +7,17 @@
   -#}
 {% endblock logs %}
 
-{% with section = obj.attributes
-    |filter_objects(
-      filters=config.filters,
-      members_list=members_list,
-      inherited_members=config.inherited_members,
-      keep_no_docstrings=config.show_if_no_docstring,
-    )
-    |order_members(config.members_order, members_list)
-    |as_attributes_section(check_public=not members_list)
-  %}
-  {% if section %}{% include "docstring/attributes"|get_template with context %}{% endif %}
-{% endwith %}
+{% if not obj.docstring.parsed | selectattr("kind.value", "eq", "attributes") %}
+  {% with section = obj.attributes
+      |filter_objects(
+        filters=config.filters,
+        members_list=members_list,
+        inherited_members=config.inherited_members,
+        keep_no_docstrings=config.show_if_no_docstring,
+      )
+      |order_members(config.members_order, members_list)
+      |as_attributes_section(check_public=not members_list)
+    %}
+    {% if section %}{% include "docstring/attributes"|get_template with context %}{% endif %}
+  {% endwith %}
+{% endif %}
diff --git a/src/mkdocstrings_handlers/python/templates/material/_base/summary/classes.html.jinja b/src/mkdocstrings_handlers/python/templates/material/_base/summary/classes.html.jinja
index 1b1ef8f3..3db63f3b 100644
--- a/src/mkdocstrings_handlers/python/templates/material/_base/summary/classes.html.jinja
+++ b/src/mkdocstrings_handlers/python/templates/material/_base/summary/classes.html.jinja
@@ -7,15 +7,17 @@
   -#}
 {% endblock logs %}
 
-{% with section = obj.classes
-    |filter_objects(
-      filters=config.filters,
-      members_list=members_list,
-      inherited_members=config.inherited_members,
-      keep_no_docstrings=config.show_if_no_docstring,
-    )
-    |order_members(config.members_order, members_list)
-    |as_classes_section(check_public=not members_list)
-  %}
-  {% if section %}{% include "docstring/classes"|get_template with context %}{% endif %}
-{% endwith %}
+{% if not obj.docstring.parsed | selectattr("kind.value", "eq", "classes") %}
+  {% with section = obj.classes
+      |filter_objects(
+        filters=config.filters,
+        members_list=members_list,
+        inherited_members=config.inherited_members,
+        keep_no_docstrings=config.show_if_no_docstring,
+      )
+      |order_members(config.members_order, members_list)
+      |as_classes_section(check_public=not members_list)
+    %}
+    {% if section %}{% include "docstring/classes"|get_template with context %}{% endif %}
+  {% endwith %}
+{% endif %}
diff --git a/src/mkdocstrings_handlers/python/templates/material/_base/summary/functions.html.jinja b/src/mkdocstrings_handlers/python/templates/material/_base/summary/functions.html.jinja
index f03dfba2..60369401 100644
--- a/src/mkdocstrings_handlers/python/templates/material/_base/summary/functions.html.jinja
+++ b/src/mkdocstrings_handlers/python/templates/material/_base/summary/functions.html.jinja
@@ -7,15 +7,17 @@
   -#}
 {% endblock logs %}
 
-{% with section = obj.functions
-    |filter_objects(
-      filters=config.filters,
-      members_list=members_list,
-      inherited_members=config.inherited_members,
-      keep_no_docstrings=config.show_if_no_docstring,
-    )
-    |order_members(config.members_order, members_list)
-    |as_functions_section(check_public=not members_list)
-  %}
-  {% if section %}{% include "docstring/functions"|get_template with context %}{% endif %}
-{% endwith %}
+{% if not obj.docstring.parsed | selectattr("kind.value", "eq", "functions") %}
+  {% with section = obj.functions
+      |filter_objects(
+        filters=config.filters,
+        members_list=members_list,
+        inherited_members=config.inherited_members,
+        keep_no_docstrings=config.show_if_no_docstring,
+      )
+      |order_members(config.members_order, members_list)
+      |as_functions_section(check_public=not members_list)
+    %}
+    {% if section %}{% include "docstring/functions"|get_template with context %}{% endif %}
+  {% endwith %}
+{% endif %}
diff --git a/src/mkdocstrings_handlers/python/templates/material/_base/summary/modules.html.jinja b/src/mkdocstrings_handlers/python/templates/material/_base/summary/modules.html.jinja
index 606711c5..dd14ee9f 100644
--- a/src/mkdocstrings_handlers/python/templates/material/_base/summary/modules.html.jinja
+++ b/src/mkdocstrings_handlers/python/templates/material/_base/summary/modules.html.jinja
@@ -7,15 +7,17 @@
   -#}
 {% endblock logs %}
 
-{% with section = obj.modules
-    |filter_objects(
-      filters=config.filters,
-      members_list=members_list,
-      inherited_members=config.inherited_members,
-      keep_no_docstrings=config.show_if_no_docstring,
-    )
-    |order_members("alphabetical", members_list)
-    |as_modules_section(check_public=not members_list)
-  %}
-  {% if section %}{% include "docstring/modules"|get_template with context %}{% endif %}
-{% endwith %}
+{% if not obj.docstring.parsed | selectattr("kind.value", "eq", "modules") %}
+  {% with section = obj.modules
+      |filter_objects(
+        filters=config.filters,
+        members_list=members_list,
+        inherited_members=config.inherited_members,
+        keep_no_docstrings=config.show_if_no_docstring,
+      )
+      |order_members("alphabetical", members_list)
+      |as_modules_section(check_public=not members_list)
+    %}
+    {% if section %}{% include "docstring/modules"|get_template with context %}{% endif %}
+  {% endwith %}
+{% endif %}
diff --git a/tests/conftest.py b/tests/conftest.py
index 1c53cba4..5b2dd33f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -15,7 +15,7 @@
 
     from markdown.core import Markdown
     from mkdocs.config.defaults import MkDocsConfig
-    from mkdocstrings.plugin import MkdocstringsPlugin
+    from mkdocstrings import MkdocstringsPlugin
 
     from mkdocstrings_handlers.python.handler import PythonHandler
 
diff --git a/tests/helpers.py b/tests/helpers.py
index 37c127e4..b0dc6ad7 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -14,7 +14,7 @@
     from pathlib import Path
 
     import pytest
-    from mkdocstrings.plugin import MkdocstringsPlugin
+    from mkdocstrings import MkdocstringsPlugin
 
     from mkdocstrings_handlers.python.handler import PythonHandler
 
diff --git a/tests/test_handler.py b/tests/test_handler.py
index 7cf8dc54..4d8b4f3d 100644
--- a/tests/test_handler.py
+++ b/tests/test_handler.py
@@ -10,13 +10,13 @@
 from typing import TYPE_CHECKING
 
 import pytest
-from griffe import DocstringSectionExamples, DocstringSectionKind, temporary_visited_module
+from griffe import Docstring, DocstringSectionExamples, DocstringSectionKind, Module, temporary_visited_module
 
 from mkdocstrings_handlers.python.config import PythonConfig, PythonOptions
 from mkdocstrings_handlers.python.handler import CollectionError, PythonHandler
 
 if TYPE_CHECKING:
-    from mkdocstrings.plugin import MkdocstringsPlugin
+    from mkdocstrings import MkdocstringsPlugin
 
 
 def test_collect_missing_module(handler: PythonHandler) -> None:
@@ -179,3 +179,102 @@ def test_give_precedence_to_user_paths() -> None:
         mdx_config={},
     )
     assert handler._paths[0] == last_sys_path
+
+
+@pytest.mark.parametrize(
+    ("section", "code"),
+    [
+        (
+            "Attributes",
+            """
+            class A:
+                '''Summary.
+
+                Attributes:
+                    x: X.
+                    y: Y.
+                '''
+                x: int = 0
+                '''X.'''
+                y: int = 0
+                '''Y.'''
+            """,
+        ),
+        (
+            "Methods",
+            """
+            class A:
+                '''Summary.
+
+                Methods:
+                    x: X.
+                    y: Y.
+                '''
+                def x(self): ...
+                '''X.'''
+                def y(self): ...
+                '''Y.'''
+            """,
+        ),
+        (
+            "Functions",
+            """
+            '''Summary.
+
+            Functions:
+                x: X.
+                y: Y.
+            '''
+            def x(): ...
+            '''X.'''
+            def y(): ...
+            '''Y.'''
+            """,
+        ),
+        (
+            "Classes",
+            """
+            '''Summary.
+
+            Classes:
+                A: A.
+                B: B.
+            '''
+            class A: ...
+            '''A.'''
+            class B: ...
+            '''B.'''
+            """,
+        ),
+        (
+            "Modules",
+            """
+            '''Summary.
+
+            Modules:
+                a: A.
+                b: B.
+            '''
+            """,
+        ),
+    ],
+)
+def test_deduplicate_summary_sections(handler: PythonHandler, section: str, code: str) -> None:
+    """Assert summary sections are deduplicated."""
+    summary_section = section.lower()
+    summary_section = "functions" if summary_section == "methods" else summary_section
+    with temporary_visited_module(code, docstring_parser="google") as module:  # type: ignore[arg-type]
+        if summary_section == "modules":
+            module.set_member("a", Module("A", docstring=Docstring("A.")))
+            module.set_member("b", Module("B", docstring=Docstring("B.")))
+        html = handler.render(
+            module,
+            handler.get_options(
+                {
+                    "summary": {summary_section: True},
+                    "show_source": False,
+                    "show_submodules": True,
+                },
+            ),
+        )
+        assert html.count(f"{section}:") == 1
diff --git a/tests/test_themes.py b/tests/test_themes.py
index a7b44795..ca7125d3 100644
--- a/tests/test_themes.py
+++ b/tests/test_themes.py
@@ -7,7 +7,7 @@
 import pytest
 
 if TYPE_CHECKING:
-    from mkdocstrings.handlers.python import PythonHandler
+    from mkdocstrings_handlers.python.handler import PythonHandler
 
 
 @pytest.mark.parametrize(