diff --git a/CHANGELOG.md b/CHANGELOG.md
index 635b5080..a8309413 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,15 @@ 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 -->
+## [0.15.2](https://github.com/mkdocstrings/mkdocstrings/releases/tag/0.15.2) - 2021-06-09
+
+<small>[Compare with 0.15.1](https://github.com/mkdocstrings/mkdocstrings/compare/0.15.1...0.15.2)</small>
+
+### Packaging
+- MkDocs default schema needs to be obtained differently now ([b3e122b](https://github.com/mkdocstrings/mkdocstrings/commit/b3e122b36d586632738ddedaed7d3df8d5dead44) by Oleh Prypin). [PR #273](https://github.com/mkdocstrings/mkdocstrings/pull/273)
+- Compatibility with MkDocs 1.2: livereload isn't guaranteed now ([36e8024](https://github.com/mkdocstrings/mkdocstrings/commit/36e80248d2ab9e61975f6c83ae517115c9410fc1) by Oleh Prypin). [PR #294](https://github.com/mkdocstrings/mkdocstrings/pull/294)
+
+
 ## [0.15.1](https://github.com/mkdocstrings/mkdocstrings/releases/tag/0.15.1) - 2021-05-16
 
 <small>[Compare with 0.15.0](https://github.com/mkdocstrings/mkdocstrings/compare/0.15.0...0.15.1)</small>
diff --git a/pyproject.toml b/pyproject.toml
index faa18416..9150a2a1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "mkdocstrings"
-version = "0.15.1"
+version = "0.15.2"
 description = "Automatic documentation from sources, for MkDocs."
 authors = ["Timothée Mazzucotelli <pawamoy@pm.me>"]
 license = "ISC License"
@@ -19,7 +19,7 @@ python = "^3.6"
 Jinja2 = ">=2.11.1, <4.0"
 Markdown = "^3.3"
 MarkupSafe = ">=1.1, <3.0"
-mkdocs = "^1.1"
+mkdocs = "^1.1.1"
 mkdocs-autorefs = ">=0.1, <0.3"
 pymdown-extensions = ">=6.3, <9.0"
 pytkdocs = ">=0.2.0, <0.12.0"
diff --git a/src/mkdocstrings/plugin.py b/src/mkdocstrings/plugin.py
index 054cd2e0..f7c7b611 100644
--- a/src/mkdocstrings/plugin.py
+++ b/src/mkdocstrings/plugin.py
@@ -15,7 +15,6 @@
 import os
 from typing import Callable, Optional, Tuple
 
-from livereload import Server
 from mkdocs.config import Config
 from mkdocs.config.config_options import Type as MkType
 from mkdocs.plugins import BasePlugin
@@ -105,7 +104,7 @@ def handlers(self) -> Handlers:
             raise RuntimeError("The plugin hasn't been initialized with a config yet")
         return self._handlers
 
-    def on_serve(self, server: Server, builder: Callable = None, **kwargs) -> Server:  # noqa: W0613 (unused arguments)
+    def on_serve(self, server, builder: Callable, **kwargs):  # noqa: W0613 (unused arguments)
         """Watch directories.
 
         Hook for the [`on_serve` event](https://www.mkdocs.org/user-guide/plugins/#on_serve).
@@ -117,18 +116,10 @@ def on_serve(self, server: Server, builder: Callable = None, **kwargs) -> Server
             server: The `livereload` server instance.
             builder: The function to build the site.
             kwargs: Additional arguments passed by MkDocs.
-
-        Returns:
-            The server instance.
         """
-        if builder is None:
-            # The builder parameter was added in mkdocs v1.1.1.
-            # See issue https://github.com/mkdocs/mkdocs/issues/1952.
-            builder = list(server.watcher._tasks.values())[0]["func"]  # noqa: W0212 (protected member)
         for element in self.config["watch"]:
             log.debug(f"Adding directory '{element}' to watcher")
             server.watch(element, builder)
-        return server
 
     def on_config(self, config: Config, **kwargs) -> Config:  # noqa: W0613 (unused arguments)
         """Instantiate our Markdown extension.
diff --git a/tests/test_extension.py b/tests/test_extension.py
index e2e92903..c6eef821 100644
--- a/tests/test_extension.py
+++ b/tests/test_extension.py
@@ -7,14 +7,23 @@
 from markdown import Markdown
 from mkdocs import config
 
+try:
+    from mkdocs.config.defaults import get_schema
+except ImportError:
+
+    def get_schema():
+        """Fallback for old versions of MkDocs."""
+        return config.DEFAULT_SCHEMA
+
 
 @pytest.fixture(name="ext_markdown")
 def fixture_ext_markdown(request, tmp_path):
     """Yield a Markdown instance with MkdocstringsExtension, with config adjustments."""
-    conf = config.Config(schema=config.DEFAULT_SCHEMA)
+    conf = config.Config(schema=get_schema())
 
     conf_dict = {
         "site_name": "foo",
+        "site_url": "https://example.org/",
         "site_dir": str(tmp_path),
         "plugins": [{"mkdocstrings": {"default_handler": "python"}}],
         **getattr(request, "param", {}),