diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index fe16046..657e048 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,7 +16,7 @@ ci:
 repos:
   # Autoformat: Python code, syntax patterns are modernized
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.15.0
+    rev: v3.21.2
     hooks:
       - id: pyupgrade
         args:
@@ -24,7 +24,7 @@ repos:
 
   # Autoformat: Python code
   - repo: https://github.com/PyCQA/autoflake
-    rev: v2.2.1
+    rev: v2.3.1
     hooks:
       - id: autoflake
         # args ref: https://github.com/PyCQA/autoflake#advanced-usage
@@ -33,25 +33,25 @@ repos:
 
   # Autoformat: Python code
   - repo: https://github.com/pycqa/isort
-    rev: 5.12.0
+    rev: 7.0.0
     hooks:
       - id: isort
 
   # Autoformat: Python code
-  - repo: https://github.com/psf/black
-    rev: 23.10.1
+  - repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 26.1.0
     hooks:
       - id: black
 
   # Autoformat: markdown, yaml, javascript (see the file .prettierignore)
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v3.0.3
+    rev: v4.0.0-alpha.8
     hooks:
       - id: prettier
 
   # Autoformat and linting, misc. details
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0
+    rev: v6.0.0
     hooks:
       - id: end-of-file-fixer
       - id: requirements-txt-fixer
@@ -60,13 +60,13 @@ repos:
 
   # Linting: Python code (see the file .flake8)
   - repo: https://github.com/PyCQA/flake8
-    rev: "6.1.0"
+    rev: "7.3.0"
     hooks:
       - id: flake8
 
   # formatting notebooks
   - repo: https://github.com/nbQA-dev/nbQA
-    rev: 1.7.0
+    rev: 1.9.1
     hooks:
       - id: nbqa-pyupgrade
         args:
diff --git a/lectures/pandas/PublicAPIs.ipynb b/lectures/pandas/PublicAPIs.ipynb
index 1c80de7..65b02ac 100644
--- a/lectures/pandas/PublicAPIs.ipynb
+++ b/lectures/pandas/PublicAPIs.ipynb
@@ -3320,9 +3320,9 @@
    "source": [
     "url = \"https://api.met.no/weatherapi/locationforecast/2.0/compact?lat=51.5&lon=0\"\n",
     "s = requests.Session()\n",
-    "s.headers[\n",
-    "    \"User-Agent\"\n",
-    "] = \"uio-in3110 https://github.com/uio-in3110/uio-in3110.github.io\"\n",
+    "s.headers[\"User-Agent\"] = (\n",
+    "    \"uio-in3110 https://github.com/uio-in3110/uio-in3110.github.io\"\n",
+    ")\n",
     "r = s.get(url)\n",
     "r"
    ]
diff --git a/lectures/production/from-script-to-project/monty-hall-game4/monty_hall_game/__main__.py b/lectures/production/from-script-to-project/monty-hall-game4/monty_hall_game/__main__.py
index 27d14a7..9ae637f 100644
--- a/lectures/production/from-script-to-project/monty-hall-game4/monty_hall_game/__main__.py
+++ b/lectures/production/from-script-to-project/monty-hall-game4/monty_hall_game/__main__.py
@@ -1,4 +1,4 @@
 from .cli import main
 
 if __name__ == "__main__":
-    main()
\ No newline at end of file
+    main()
diff --git a/lectures/python/exercises.ipynb b/lectures/python/exercises.ipynb
index 0bc0490..a26d0c0 100644
--- a/lectures/python/exercises.ipynb
+++ b/lectures/python/exercises.ipynb
@@ -404,8 +404,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "class Square(...):\n",
-    "    ...\n",
+    "class Square(...): ...\n",
     "\n",
     "\n",
     "sq = Square(5)\n",
diff --git a/lectures/python/point.py b/lectures/python/point.py
index a34e7fb..16a3364 100755
--- a/lectures/python/point.py
+++ b/lectures/python/point.py
@@ -4,8 +4,7 @@
 class Point:
     """Class representing a 2-D Cartesian point"""
 
-    def __init__(self, x, y):
-        ...
+    def __init__(self, x, y): ...
 
     def __repr__(self):
         return f"Point({self.x}, {self.y})"
diff --git a/lectures/web-servers/monty-hall-game/game_server2.py b/lectures/web-servers/monty-hall-game/game_server2.py
index 2979508..cbddd17 100644
--- a/lectures/web-servers/monty-hall-game/game_server2.py
+++ b/lectures/web-servers/monty-hall-game/game_server2.py
@@ -11,7 +11,6 @@
 - The template contains a form with a POST request to the /reselect.
 """
 
-
 from fastapi import FastAPI, Request
 from fastapi.responses import HTMLResponse
 from fastapi.templating import Jinja2Templates
diff --git a/lectures/web-servers/monty-hall-game/game_server3.py b/lectures/web-servers/monty-hall-game/game_server3.py
index 59b7d85..b9bc710 100644
--- a/lectures/web-servers/monty-hall-game/game_server3.py
+++ b/lectures/web-servers/monty-hall-game/game_server3.py
@@ -12,7 +12,6 @@
   and displays it in the reselect3.html template
 """
 
-
 from fastapi import FastAPI, Form, Request
 from fastapi.responses import HTMLResponse
 from fastapi.templating import Jinja2Templates
diff --git a/lectures/web-servers/monty-hall-game/game_server4.py b/lectures/web-servers/monty-hall-game/game_server4.py
index 6627fd3..50dd29c 100644
--- a/lectures/web-servers/monty-hall-game/game_server4.py
+++ b/lectures/web-servers/monty-hall-game/game_server4.py
@@ -22,7 +22,6 @@
 
 """
 
-
 import random
 import uuid
 
diff --git a/lectures/web-servers/monty-hall-game/game_server6.py b/lectures/web-servers/monty-hall-game/game_server6.py
index b19f81f..23ef7bb 100644
--- a/lectures/web-servers/monty-hall-game/game_server6.py
+++ b/lectures/web-servers/monty-hall-game/game_server6.py
@@ -13,7 +13,6 @@
 information
 """
 
-
 import random
 import uuid
 from statistics import mean
diff --git a/lectures/web-servers/monty-hall-game/game_server7.py b/lectures/web-servers/monty-hall-game/game_server7.py
index 4667e4e..e57c8b8 100644
--- a/lectures/web-servers/monty-hall-game/game_server7.py
+++ b/lectures/web-servers/monty-hall-game/game_server7.py
@@ -13,7 +13,6 @@
 information
 """
 
-
 import random
 import uuid
 from statistics import mean
diff --git a/lectures/web-servers/monty-hall-game/game_server_rest.py b/lectures/web-servers/monty-hall-game/game_server_rest.py
index 1d4c79a..351ce68 100644
--- a/lectures/web-servers/monty-hall-game/game_server_rest.py
+++ b/lectures/web-servers/monty-hall-game/game_server_rest.py
@@ -13,7 +13,6 @@
 information
 """
 
-
 import random
 import uuid
 from functools import partial
diff --git a/lectures/web-servers/monty-hall-game/game_server_rest_soln.py b/lectures/web-servers/monty-hall-game/game_server_rest_soln.py
index dad2da4..9939d5c 100644
--- a/lectures/web-servers/monty-hall-game/game_server_rest_soln.py
+++ b/lectures/web-servers/monty-hall-game/game_server_rest_soln.py
@@ -11,7 +11,6 @@
 use in combination with autoplay.py to play monty hall via a REST API.
 """
 
-
 import random
 import uuid
 from enum import IntEnum