diff --git a/.github/workflows/black.yml b/.github/workflows/black.yml
index b0085b62..e515fac0 100644
--- a/.github/workflows/black.yml
+++ b/.github/workflows/black.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
         os: [ubuntu-latest]
         tool: ["black", "isort"]
     steps:
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index f4e7d4c4..923b7965 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 9b7e175f..877e8f26 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.11"] # https://github.com/Hochfrequenz/ahbicht/issues/357
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/json_schemas.yml b/.github/workflows/json_schemas.yml
index 004d0fb5..6fe95260 100644
--- a/.github/workflows/json_schemas.yml
+++ b/.github/workflows/json_schemas.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.10", "3.11"]
+        python-version: ["3.10", "3.11"] # https://github.com/Hochfrequenz/ahbicht/issues/358
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/packaging_test.yml b/.github/workflows/packaging_test.yml
index 3cde86c4..df6c562a 100644
--- a/.github/workflows/packaging_test.yml
+++ b/.github/workflows/packaging_test.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: [3.9, "3.10", "3.11", "3.12"]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 599bafcb..6e881739 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/pythonlint.yml b/.github/workflows/pythonlint.yml
index ae04b90c..78fc485e 100644
--- a/.github/workflows/pythonlint.yml
+++ b/.github/workflows/pythonlint.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
         os: [ubuntu-latest]
         linter-env: ["linting", "type_check"]
     steps:
diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index d221b2ed..97530bfd 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.9, "3.10", "3.11"]
+        python-version: [3.9, "3.10", "3.11", "3.12"]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index f4b66d5d..52c79ab7 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -9,7 +9,8 @@ version: 2
 build:
   os: ubuntu-20.04
   tools:
-    python: "3.10"
+    python: "3.11"
+    # https://github.com/Hochfrequenz/ahbicht/issues/357
     # You can also specify other tool versions:
     # nodejs: "16"
     # rust: "1.55"
diff --git a/dev_requirements/requirements-linting.txt b/dev_requirements/requirements-linting.txt
index e2e61002..26626276 100644
--- a/dev_requirements/requirements-linting.txt
+++ b/dev_requirements/requirements-linting.txt
@@ -6,7 +6,7 @@
 #
 astroid==3.0.0
     # via pylint
-dill==0.3.6
+dill==0.3.7
     # via pylint
 isort==5.12.0
     # via pylint
diff --git a/dev_requirements/requirements-type_check.txt b/dev_requirements/requirements-type_check.txt
index 484eb948..44bccd3c 100644
--- a/dev_requirements/requirements-type_check.txt
+++ b/dev_requirements/requirements-type_check.txt
@@ -10,5 +10,5 @@ mypy-extensions==1.0.0
     # via mypy
 types-pytz==2023.3.1.1
     # via -r dev_requirements/requirements-type_check.in
-typing-extensions==4.5.0
+typing-extensions==4.7.1
     # via mypy
diff --git a/setup.cfg b/setup.cfg
index 0b5b5126..245786e5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,6 +14,10 @@ classifiers =
     Intended Audience :: Developers
     Programming Language :: Python
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
     Operating System :: OS Independent
 license = mit
 platforms = any