diff --git a/.github/workflows/build-deb.yml b/.github/workflows/build-deb.yml
index 4599f672..352f42ad 100644
--- a/.github/workflows/build-deb.yml
+++ b/.github/workflows/build-deb.yml
@@ -5,19 +5,19 @@ on: [push, pull_request]
 jobs:
   build-deb-package:
 
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
 
     steps:
     - uses: actions/checkout@v4
 
     - name: build
-      uses: dawidd6/action-debian-package@v1.4.4
+      uses: dawidd6/action-debian-package@v1.6.0
       with:
         # Optional, relative to workspace directory
         source_directory: .
         # Optional, relative to workspace directory
         artifacts_directory: output
         # Optional, value from `debian/changelog` is used if not defined
-        os_distribution: jammy
+        os_distribution: noble
         # Optional, target architecture, defaults to amd64
         cpu_architecture: amd64
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 3964c807..254b2694 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [macos-12, macos-13, ubuntu-20.04, ubuntu-22.04]
+        os: [macos-13, ubuntu-22.04, ubuntu-24.04]
 
     steps:
     - uses: actions/checkout@v4
@@ -35,8 +35,7 @@ jobs:
       if: startsWith(matrix.os, 'ubuntu')
       run: |
         sudo apt-get update
-        sudo apt-get -y install -qq gettext gir1.2-gdkpixbuf-2.0 gir1.2-glib-2.0 gir1.2-gtk-3.0 gir1.2-gtksource-4 gir1.2-pango-1.0 gir1.2-webkit2-4.0 python3 python3-enchant python3-gi python3-yaml
-        python3 -m pip install setuptools tox
+        sudo apt-get -y install -qq gettext gir1.2-gdkpixbuf-2.0 gir1.2-glib-2.0 gir1.2-gtk-3.0 gir1.2-gtksource-4 gir1.2-pango-1.0 gir1.2-webkit2-4.1 python3 python3-enchant python3-gi python3-setuptools python3-yaml tox
 
     - name: Install dependencies (macOS)
       if: startsWith(matrix.os, 'macos')
@@ -58,13 +57,14 @@ jobs:
         HOMEBREW_NO_INSTALL_UPGRADE: on
 
     - name: Check style
-      if: matrix.os == 'ubuntu-22.04'
+      if: matrix.os == 'ubuntu-24.04'
       run: |
-        python3 -m tox -v -e style
+        tox -v -e style
 
     - name: Run tests
-      if: matrix.os == 'ubuntu-22.04'  # pip on macOS needs --break-system-packages
+      if: matrix.os == 'ubuntu-24.04'  # pip on macOS needs --break-system-packages
       run: |
         python3 -c "import gi"
-        python3 -m tox -v -e py
-        python3 -m pip install .
+        tox -v -e py
+        python3 -m venv .venv
+        ./.venv/bin/pip install .
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e9dd670e..e0c76593 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v4.6.0
     hooks:
     -   id: trailing-whitespace
     -   id: check-yaml
@@ -10,7 +10,7 @@ repos:
 
 # Static analysis for Python code
 -   repo: https://github.com/PyCQA/flake8
-    rev: 6.0.0
+    rev: 7.1.1
     hooks:
     -   id: flake8
         # E203: whitespace before ':' (not compliant with PEP 8)
@@ -21,21 +21,21 @@ repos:
 
 # Python code formatter
 -   repo: https://github.com/psf/black
-    rev: 23.3.0
+    rev: 24.8.0
     hooks:
     -   id: black
         exclude: ^rednotebook/external/
 
 # Imports sorter
 -   repo: https://github.com/pycqa/isort
-    rev: 5.11.5
+    rev: 5.13.2
     hooks:
     -   id: isort
         exclude: ^rednotebook/journal.py
 
 # Upgrades Python code to a target version
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v3.4.0
+    rev: v3.17.0
     hooks:
     -   id: pyupgrade
         args: ['--py36-plus', '--exit-zero']
@@ -43,7 +43,7 @@ repos:
 
 # Finds unused Python code
 -   repo: https://github.com/jendrikseipp/vulture
-    rev: v2.7
+    rev: v2.12
     hooks:
     -   id: vulture
         exclude: ^rednotebook/external/
diff --git a/rednotebook/gui/categories.py b/rednotebook/gui/categories.py
index 4410b947..c5654400 100644
--- a/rednotebook/gui/categories.py
+++ b/rednotebook/gui/categories.py
@@ -99,7 +99,7 @@ def add_category(self, category):
         self.categories.sort(key=utils.sort_asc)
 
     def node_on_top_level(self, iter):
-        if type(iter) != Gtk.TreeIter:
+        if isinstance(iter, Gtk.TreeIter):
             # iter is a path -> convert to iter
             iter = self.tree_store.get_iter(iter)
         assert self.tree_store.iter_is_valid(iter)
diff --git a/rednotebook/gui/editor.py b/rednotebook/gui/editor.py
index 51ae398f..8343dd62 100644
--- a/rednotebook/gui/editor.py
+++ b/rednotebook/gui/editor.py
@@ -103,7 +103,7 @@ def insert(self, text, iter=None, overwrite=False, undoing=False):
         if iter is None:
             self.day_text_buffer.insert_at_cursor(text)
         else:
-            if type(iter) == Gtk.TextMark:
+            if isinstance(iter, Gtk.TextMark):
                 iter = self.day_text_buffer.get_iter_at_mark(iter)
             self.day_text_buffer.insert(iter, text)