From 2a67ba63f00e39b5f601aa828e11a6b59fddc60d Mon Sep 17 00:00:00 2001
From: Dzmitry Sianiuk <dz.sianiuk@hey.com>
Date: Thu, 23 Sep 2021 09:19:50 +0300
Subject: [PATCH 1/6] Fixed README.md typo

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index b7b75d741..8b3f02849 100644
--- a/README.md
+++ b/README.md
@@ -117,7 +117,7 @@ SimpleApp.run(log="textual.log")
 
 This app contains a single event handler `on_mount`. The mount event is sent when the app or widget is ready to start processing events, and is typically used for initialization. You may have noticed that `on_mount` is an `async` function. Since Textual is an asynchronous framework we will need this if we need to call most other methods.
 
-The `on_mount` method makes two calls to `self.view.dock` which adds widgets to tht terminal.
+The `on_mount` method makes two calls to `self.view.dock` which adds widgets to the terminal.
 
 Here's the first line in the mount handler:
 

From 6ad4101e2af5bedf2e998668db8648b866cb1f0a Mon Sep 17 00:00:00 2001
From: Paul Sanders <psanders1@gmail.com>
Date: Sat, 25 Sep 2021 21:57:30 -0400
Subject: [PATCH 2/6] Remove double import of Widget

---
 src/textual/app.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/textual/app.py b/src/textual/app.py
index 331c31563..28335bada 100644
--- a/src/textual/app.py
+++ b/src/textual/app.py
@@ -29,7 +29,7 @@ from .message_pump import MessagePump
 from ._profile import timer
 from .view import View
 from .views import DockView
-from .widget import Widget, Widget, Reactive
+from .widget import Widget, Reactive
 
 
 # asyncio will warn against resources not being cleared

From ca3a95f838f176d63e4e8c1e4a1e12a2d65b9712 Mon Sep 17 00:00:00 2001
From: Jacob Deppen <deppen.8@gmail.com>
Date: Thu, 7 Oct 2021 15:57:29 -0400
Subject: [PATCH 3/6] Remove unused import

`from textual import events` is not used. The demo runs successfully without it.
---
 examples/animation.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/examples/animation.py b/examples/animation.py
index 1d1300c2d..79edd4817 100644
--- a/examples/animation.py
+++ b/examples/animation.py
@@ -1,4 +1,3 @@
-from textual import events
 from textual.app import App
 from textual.reactive import Reactive
 from textual.widgets import Footer, Placeholder

From 15fee1f5ac710477c4a9592ff5682c6c32edd3cc Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Sat, 1 Jan 2022 14:48:28 +0000
Subject: [PATCH 4/6] eof

---
 CHANGELOG.md                 |  8 +++++++
 pyproject.toml               |  2 +-
 src/textual/_animator.py     |  4 ++--
 src/textual/_linux_driver.py | 42 ++++++++++++++++++++---------------
 src/textual/_timer.py        | 43 +++++++++++++++++++++++-------------
 src/textual/message_pump.py  |  5 ++---
 6 files changed, 65 insertions(+), 39 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 129c94cd7..11f0edd6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+
+## [0.1.13] - 2022-01-01
+
+### Fixed
+
+- Fixed spurious characters when exiting app
+- Fixed increasing delay when exiting
+
 ## [0.1.12] - 2021-09-20
 
 ### Added
diff --git a/pyproject.toml b/pyproject.toml
index 7d52be98f..b96ddb871 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "textual"
-version = "0.1.12"
+version = "0.1.13"
 homepage = "https://github.com/willmcgugan/textual"
 description = "Text User Interface using Rich"
 authors = ["Will McGugan <willmcgugan@gmail.com>"]
diff --git a/src/textual/_animator.py b/src/textual/_animator.py
index 2d8f4c3bd..b3bc42b6b 100644
--- a/src/textual/_animator.py
+++ b/src/textual/_animator.py
@@ -113,10 +113,10 @@ class Animator:
 
     async def start(self) -> None:
         if self._timer_task is None:
-            self._timer_task = asyncio.get_event_loop().create_task(self._timer.run())
+            self._timer_task = self._timer.start()
 
     async def stop(self) -> None:
-        self._timer.stop()
+        await self._timer.stop()
         if self._timer_task:
             await self._timer_task
         self._timer_task = None
diff --git a/src/textual/_linux_driver.py b/src/textual/_linux_driver.py
index 7f4df92b2..a20e19f0e 100644
--- a/src/textual/_linux_driver.py
+++ b/src/textual/_linux_driver.py
@@ -7,7 +7,6 @@ import selectors
 import signal
 import sys
 import termios
-from time import time
 import tty
 from typing import Any, TYPE_CHECKING
 from threading import Event, Thread
@@ -15,12 +14,14 @@ from threading import Event, Thread
 if TYPE_CHECKING:
     from rich.console import Console
 
+from . import log
 
 from . import events
 from .driver import Driver
 from .geometry import Size
 from ._types import MessageTarget
 from ._xterm_parser import XTermParser
+from ._profile import timer
 
 
 class LinuxDriver(Driver):
@@ -53,7 +54,7 @@ class LinuxDriver(Driver):
         write("\x1b[?1006h")  # SET_SGR_EXT_MODE_MOUSE
 
         # write("\x1b[?1007h")
-        # self.console.file.flush()
+        self.console.file.flush()
 
         # Note: E.g. lxterminal understands 1000h, but not the urxvt or sgr
         #       extensions.
@@ -64,7 +65,7 @@ class LinuxDriver(Driver):
         write("\x1b[?1003l")  #
         write("\x1b[?1015l")
         write("\x1b[?1006l")
-        # self.console.file.flush()
+        self.console.file.flush()
 
     def start_application_mode(self):
 
@@ -110,7 +111,7 @@ class LinuxDriver(Driver):
 
         self.console.show_cursor(False)
         self.console.file.write("\033[?1003h\n")
-
+        self.console.file.flush()
         self._key_thread = Thread(
             target=self.run_input_thread, args=(asyncio.get_event_loop(),)
         )
@@ -145,25 +146,30 @@ class LinuxDriver(Driver):
             if not self.exit_event.is_set():
                 signal.signal(signal.SIGWINCH, signal.SIG_DFL)
                 self._disable_mouse_support()
+                termios.tcflush(self.fileno, termios.TCIFLUSH)
                 self.exit_event.set()
                 if self._key_thread is not None:
                     self._key_thread.join()
-        except Exception:
+        except Exception as error:
             # TODO: log this
             pass
 
     def stop_application_mode(self) -> None:
 
-        self.disable_input()
+        with timer("disable_input"):
+            self.disable_input()
 
-        if self.attrs_before is not None:
-            try:
-                termios.tcsetattr(self.fileno, termios.TCSANOW, self.attrs_before)
-            except termios.error:
-                pass
+        with timer("tcsetattr"):
+            if self.attrs_before is not None:
+                try:
+                    termios.tcsetattr(self.fileno, termios.TCSANOW, self.attrs_before)
+                except termios.error:
+                    pass
 
-        self.console.set_alt_screen(False)
-        self.console.show_cursor(True)
+        with timer("set_alt_screen False, show cursor"):
+            with self.console:
+                self.console.set_alt_screen(False)
+                self.console.show_cursor(True)
 
     def run_input_thread(self, loop) -> None:
         try:
@@ -180,7 +186,7 @@ class LinuxDriver(Driver):
 
         def more_data() -> bool:
             """Check if there is more data to parse."""
-            for key, events in selector.select(0.1):
+            for key, events in selector.select(0.01):
                 if events:
                     return True
             return False
@@ -199,11 +205,11 @@ class LinuxDriver(Driver):
                         unicode_data = decode(read(fileno, 1024))
                         for event in parser.feed(unicode_data):
                             self.process_event(event)
-        except Exception:
-            pass
-            # TODO: log
+        except Exception as error:
+            log(error)
         finally:
-            selector.close()
+            with timer("selector.close"):
+                selector.close()
 
 
 if __name__ == "__main__":
diff --git a/src/textual/_timer.py b/src/textual/_timer.py
index 1e8999d9b..cbeef27cd 100644
--- a/src/textual/_timer.py
+++ b/src/textual/_timer.py
@@ -1,7 +1,13 @@
 from __future__ import annotations
 
 import weakref
-from asyncio import CancelledError, Event, TimeoutError, wait_for
+from asyncio import (
+    get_event_loop,
+    CancelledError,
+    Event,
+    sleep,
+    Task,
+)
 from time import monotonic
 from typing import Awaitable, Callable, Union
 
@@ -42,7 +48,6 @@ class Timer:
         self._callback = callback
         self._repeat = repeat
         self._skip = skip
-        self._stop_event = Event()
         self._active = Event()
         if not pause:
             self._active.set()
@@ -59,22 +64,33 @@ class Timer:
             raise EventTargetGone()
         return target
 
-    def stop(self) -> None:
-        self._active.set()
-        self._stop_event.set()
+    def start(self) -> Task:
+        """Start the timer return the task.
+
+        Returns:
+            Task: A Task instance for the timer.
+        """
+        self._task = get_event_loop().create_task(self._run())
+        return self._task
+
+    async def stop(self) -> None:
+        """Stop the timer, and block until it exists."""
+        self._task.cancel()
+        await self._task
 
     def pause(self) -> None:
+        """Pause the timer."""
         self._active.clear()
 
     def resume(self) -> None:
+        """Result a paused timer."""
         self._active.set()
 
-    async def run(self) -> None:
+    async def _run(self) -> None:
+        """Run the timer."""
         count = 0
         _repeat = self._repeat
         _interval = self._interval
-        _wait = self._stop_event.wait
-        _wait_active = self._active.wait
         start = monotonic()
         try:
             while _repeat is None or count <= _repeat:
@@ -82,11 +98,9 @@ class Timer:
                 if self._skip and next_timer < monotonic():
                     count += 1
                     continue
-                try:
-                    if await wait_for(_wait(), max(0, next_timer - monotonic())):
-                        break
-                except TimeoutError:
-                    pass
+                wait_time = max(0, next_timer - monotonic())
+                if wait_time:
+                    await sleep(wait_time)
                 event = events.Timer(
                     self.sender, timer=self, count=count, callback=self._callback
                 )
@@ -95,7 +109,6 @@ class Timer:
                     await self.target.post_message(event)
                 except EventTargetGone:
                     break
-
-                await _wait_active()
+                await self._active.wait()
         except CancelledError:
             pass
diff --git a/src/textual/message_pump.py b/src/textual/message_pump.py
index 0da7c6953..50a37e424 100644
--- a/src/textual/message_pump.py
+++ b/src/textual/message_pump.py
@@ -127,8 +127,7 @@ class MessagePump:
         name: str | None = None,
     ) -> Timer:
         timer = Timer(self, delay, self, name=name, callback=callback, repeat=0)
-        timer_task = asyncio.get_event_loop().create_task(timer.run())
-        self._child_tasks.add(timer_task)
+        self._child_tasks.add(timer.start())
         return timer
 
     def set_interval(
@@ -142,7 +141,7 @@ class MessagePump:
         timer = Timer(
             self, interval, self, name=name, callback=callback, repeat=repeat or None
         )
-        self._child_tasks.add(asyncio.get_event_loop().create_task(timer.run()))
+        self._child_tasks.add(timer.start())
         return timer
 
     async def call_later(self, callback: Callable, *args, **kwargs) -> None:

From e719e0ad07ef35f06b177d77a531f22fa2dd5cb3 Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Sat, 1 Jan 2022 14:50:13 +0000
Subject: [PATCH 5/6] update rich

---
 poetry.lock | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/poetry.lock b/poetry.lock
index 8d6fed142..5fb3cda3d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -547,17 +547,17 @@ python-versions = "*"
 
 [[package]]
 name = "rich"
-version = "10.7.0"
+version = "10.16.1"
 description = "Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal"
 category = "main"
 optional = false
-python-versions = ">=3.6,<4.0"
+python-versions = ">=3.6.2,<4.0.0"
 
 [package.dependencies]
 colorama = ">=0.4.0,<0.5.0"
 commonmark = ">=0.9.0,<0.10.0"
 pygments = ">=2.6.0,<3.0.0"
-typing-extensions = {version = ">=3.7.4,<4.0.0", markers = "python_version < \"3.8\""}
+typing-extensions = {version = ">=3.7.4,<5.0", markers = "python_version < \"3.8\""}
 
 [package.extras]
 jupyter = ["ipywidgets (>=7.5.1,<8.0.0)"]
@@ -995,8 +995,8 @@ regex = [
     {file = "regex-2021.8.21.tar.gz", hash = "sha256:faf08b0341828f6a29b8f7dd94d5cf8cc7c39bfc3e67b78514c54b494b66915a"},
 ]
 rich = [
-    {file = "rich-10.7.0-py3-none-any.whl", hash = "sha256:517b4e0efd064dd1fe821ca93dd3095d73380ceac1f0a07173d507d9b18f1396"},
-    {file = "rich-10.7.0.tar.gz", hash = "sha256:13ac80676e12cf528dc4228dc682c8402f82577c2aa67191e294350fa2c3c4e9"},
+    {file = "rich-10.16.1-py3-none-any.whl", hash = "sha256:bbe04dd6ac09e4b00d22cb1051aa127beaf6e16c3d8687b026e96d3fca6aad52"},
+    {file = "rich-10.16.1.tar.gz", hash = "sha256:4949e73de321784ef6664ebbc854ac82b20ff60b2865097b93f3b9b41e30da27"},
 ]
 six = [
     {file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},

From 0d7e8a824011d757394cc8f35a0043e19023c2ed Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Sat, 1 Jan 2022 15:03:54 +0000
Subject: [PATCH 6/6] poetry lock

---
 poetry.lock    | 114 +++++++++++++++++--------------------------------
 pyproject.toml |   2 +-
 2 files changed, 41 insertions(+), 75 deletions(-)

diff --git a/poetry.lock b/poetry.lock
index 5fb3cda3d..7a97e0e7b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,11 +1,3 @@
-[[package]]
-name = "appdirs"
-version = "1.4.4"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
-category = "dev"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "astunparse"
 version = "1.6.3"
@@ -56,25 +48,30 @@ testing = ["pytest (>=4.6)", "pytest-flake8", "pytest-cov", "pytest-black (>=0.3
 
 [[package]]
 name = "black"
-version = "20.8b1"
+version = "21.12b0"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.6.2"
 
 [package.dependencies]
-appdirs = "*"
 click = ">=7.1.2"
 mypy-extensions = ">=0.4.3"
-pathspec = ">=0.6,<1"
-regex = ">=2020.1.8"
-toml = ">=0.10.1"
-typed-ast = ">=1.4.0"
-typing-extensions = ">=3.7.4"
+pathspec = ">=0.9.0,<1"
+platformdirs = ">=2"
+tomli = ">=0.2.6,<2.0.0"
+typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\" and implementation_name == \"cpython\""}
+typing-extensions = [
+    {version = ">=3.10.0.0", markers = "python_version < \"3.10\""},
+    {version = "!=3.10.0.1", markers = "python_version >= \"3.10\""},
+]
 
 [package.extras]
 colorama = ["colorama (>=0.4.3)"]
-d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
+d = ["aiohttp (>=3.7.4)"]
+jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
+python2 = ["typed-ast (>=1.4.3)"]
+uvloop = ["uvloop (>=0.15.2)"]
 
 [[package]]
 name = "cached-property"
@@ -537,14 +534,6 @@ python-versions = ">=3.6"
 [package.dependencies]
 pyyaml = "*"
 
-[[package]]
-name = "regex"
-version = "2021.8.21"
-description = "Alternative regular expression module, to replace re."
-category = "dev"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "rich"
 version = "10.16.1"
@@ -578,6 +567,14 @@ category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "tomli"
+version = "1.2.3"
+description = "A lil' TOML parser"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "typed-ast"
 version = "1.4.3"
@@ -594,6 +591,14 @@ category = "main"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "typing-extensions"
+version = "3.10.0.2"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "main"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "virtualenv"
 version = "20.7.2"
@@ -640,13 +645,9 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "a561498403eccf382232162785fccae98ca23115b35849a7dd7331a338d8d7a4"
+content-hash = "4e81046724f8d03d079e07d047f8bb6f14a0889716fac3938647934a0052d834"
 
 [metadata.files]
-appdirs = [
-    {file = "appdirs-1.4.4-py2.py3-none-any.whl", hash = "sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128"},
-    {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
-]
 astunparse = [
     {file = "astunparse-1.6.3-py2.py3-none-any.whl", hash = "sha256:c2652417f2c8b5bb325c885ae329bdf3f86424075c4fd1a128674bc6fba4b8e8"},
     {file = "astunparse-1.6.3.tar.gz", hash = "sha256:5ad93a8456f0d084c3456d059fd9a92cce667963232cbf763eac3bc5b7940872"},
@@ -664,7 +665,8 @@ attrs = [
     {file = "backports.entry_points_selectable-1.1.0.tar.gz", hash = "sha256:988468260ec1c196dab6ae1149260e2f5472c9110334e5d51adcb77867361f6a"},
 ]
 black = [
-    {file = "black-20.8b1.tar.gz", hash = "sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea"},
+    {file = "black-21.12b0-py3-none-any.whl", hash = "sha256:a615e69ae185e08fdd73e4715e260e2479c861b5740057fde6e8b4e3b7dd589f"},
+    {file = "black-21.12b0.tar.gz", hash = "sha256:77b80f693a569e2e527958459634f18df9b0ba2625ba4e0c2d5da5be42e6f2b3"},
 ]
 cached-property = [
     {file = "cached-property-1.5.2.tar.gz", hash = "sha256:9fa5755838eecbb2d234c3aa390bd80fbd3ac6b6869109bfc1b499f7bd89a130"},
@@ -951,49 +953,6 @@ pyyaml-env-tag = [
     {file = "pyyaml_env_tag-0.1-py3-none-any.whl", hash = "sha256:af31106dec8a4d68c60207c1886031cbf839b68aa7abccdb19868200532c2069"},
     {file = "pyyaml_env_tag-0.1.tar.gz", hash = "sha256:70092675bda14fdec33b31ba77e7543de9ddc88f2e5b99160396572d11525bdb"},
 ]
-regex = [
-    {file = "regex-2021.8.21-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:4b0c211c55d4aac4309c3209833c803fada3fc21cdf7b74abedda42a0c9dc3ce"},
-    {file = "regex-2021.8.21-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:5d5209c3ba25864b1a57461526ebde31483db295fc6195fdfc4f8355e10f7376"},
-    {file = "regex-2021.8.21-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c835c30f3af5c63a80917b72115e1defb83de99c73bc727bddd979a3b449e183"},
-    {file = "regex-2021.8.21-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:615fb5a524cffc91ab4490b69e10ae76c1ccbfa3383ea2fad72e54a85c7d47dd"},
-    {file = "regex-2021.8.21-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:9966337353e436e6ba652814b0a957a517feb492a98b8f9d3b6ba76d22301dcc"},
-    {file = "regex-2021.8.21-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:a49f85f0a099a5755d0a2cc6fc337e3cb945ad6390ec892332c691ab0a045882"},
-    {file = "regex-2021.8.21-cp310-cp310-win32.whl", hash = "sha256:f93a9d8804f4cec9da6c26c8cfae2c777028b4fdd9f49de0302e26e00bb86504"},
-    {file = "regex-2021.8.21-cp310-cp310-win_amd64.whl", hash = "sha256:a795829dc522227265d72b25d6ee6f6d41eb2105c15912c230097c8f5bfdbcdc"},
-    {file = "regex-2021.8.21-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:bca14dfcfd9aae06d7d8d7e105539bd77d39d06caaae57a1ce945670bae744e0"},
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@@ -1006,6 +965,10 @@ toml = [
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 ]
+tomli = [
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+    {file = "tomli-1.2.3.tar.gz", hash = "sha256:05b6166bff487dc068d322585c7ea4ef78deed501cc124060e0f238e89a9231f"},
+]
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@@ -1042,6 +1005,9 @@ typing-extensions = [
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+    {file = "typing_extensions-3.10.0.2-py2-none-any.whl", hash = "sha256:d8226d10bc02a29bcc81df19a26e56a9647f8b0a6d4a83924139f4a8b01f17b7"},
+    {file = "typing_extensions-3.10.0.2-py3-none-any.whl", hash = "sha256:f1d25edafde516b146ecd0613dabcc61409817af4766fbbcfb8d1ad4ec441a34"},
+    {file = "typing_extensions-3.10.0.2.tar.gz", hash = "sha256:49f75d16ff11f1cd258e1b988ccff82a3ca5570217d7ad8c5f48205dd99a677e"},
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diff --git a/pyproject.toml b/pyproject.toml
index b96ddb871..5d2fe9c62 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ typing-extensions = { version = "^3.10.0", python = "<3.8" }
 [tool.poetry.dev-dependencies]
 
 pytest = "^6.2.3"
-black = "^20.8b1"
+black = "^21.11b1"
 mypy = "^0.910"
 pytest-cov = "^2.12.1"
 mkdocs = "^1.2.1"