diff --git a/.github/workflows/python-lint.yml b/.github/workflows/python-lint.yml
index 9aec0238..7d1390ad 100644
--- a/.github/workflows/python-lint.yml
+++ b/.github/workflows/python-lint.yml
@@ -13,9 +13,10 @@ jobs:
     - uses: isort/isort-action@master
       with:
         sortPaths: "./mautrix_telegram"
-    - uses: psf/black@21.12b0
+    - uses: psf/black@stable
       with:
         src: "./mautrix_telegram"
+        version: "22.1.0"
     - name: pre-commit
       run: |
         pip install pre-commit
diff --git a/dev-requirements.txt b/dev-requirements.txt
index d337c3b8..232f7249 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,3 +1,3 @@
 pre-commit>=2.10.1,<3
 isort>=5.10.1,<6
-black==21.12b2
+black==22.1.0
diff --git a/mautrix_telegram/formatter/from_matrix/parser.py b/mautrix_telegram/formatter/from_matrix/parser.py
index 55cef8ab..daf87f3e 100644
--- a/mautrix_telegram/formatter/from_matrix/parser.py
+++ b/mautrix_telegram/formatter/from_matrix/parser.py
@@ -20,7 +20,7 @@ import logging
 from telethon import TelegramClient
 
 from mautrix.types import RoomID, UserID
-from mautrix.util.formatter import MatrixParser as BaseMatrixParser, RecursionContext, HTMLNode
+from mautrix.util.formatter import HTMLNode, MatrixParser as BaseMatrixParser, RecursionContext
 from mautrix.util.logging import TraceLogger
 
 from ... import portal as po, puppet as pu, user as u
diff --git a/mautrix_telegram/portal.py b/mautrix_telegram/portal.py
index b0133d94..b60be3a4 100644
--- a/mautrix_telegram/portal.py
+++ b/mautrix_telegram/portal.py
@@ -1512,7 +1512,7 @@ class Portal(DBPortal, BasePortal):
         else:
             w = h = None
         file_name = content["net.maunium.telegram.internal.filename"]
-        max_image_size = self.config["bridge.image_as_file_size"] * 1000 ** 2
+        max_image_size = self.config["bridge.image_as_file_size"] * 1000**2
 
         if self.config["bridge.parallel_file_transfer"] and content.url:
             file_handle, file_size = await util.parallel_transfer_to_telegram(
@@ -2275,7 +2275,7 @@ class Portal(DBPortal, BasePortal):
 
         attrs = self._parse_telegram_document_attributes(document.attributes)
 
-        if document.size > self.config["bridge.max_document_size"] * 1000 ** 2:
+        if document.size > self.config["bridge.max_document_size"] * 1000**2:
             name = attrs.name or ""
             caption = f"\n{evt.message}" if evt.message else ""
             # TODO encrypt
diff --git a/mautrix_telegram/tgclient.py b/mautrix_telegram/tgclient.py
index 5c99295e..0fa2448f 100644
--- a/mautrix_telegram/tgclient.py
+++ b/mautrix_telegram/tgclient.py
@@ -40,7 +40,7 @@ class MautrixTelegramClient(TelegramClient):
         mime_type: str = None,
         attributes: List[TypeDocumentAttribute] = None,
         file_name: str = None,
-        max_image_size: float = 10 * 1000 ** 2,
+        max_image_size: float = 10 * 1000**2,
     ) -> Union[InputMediaUploadedDocument, InputMediaUploadedPhoto]:
         file_handle = await super().upload_file(file, file_name=file_name)
 
diff --git a/pyproject.toml b/pyproject.toml
index af107ec4..5220b76d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,4 +9,4 @@ line_length = 99
 [tool.black]
 line-length = 99
 target-version = ["py38"]
-required-version = "21.12b0"
+required-version = "22.1.0"