diff --git a/.github/workflows/python-package.yaml b/.github/workflows/python-package.yaml
index aa0eb5c..931e514 100644
--- a/.github/workflows/python-package.yaml
+++ b/.github/workflows/python-package.yaml
@@ -1,12 +1,9 @@
-name: CI/CD Pipeline
-
 on:
   - push
   - pull_request
 
 jobs:
   test:
-    name: Test Python ${{ matrix.python-version }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
 
     strategy:
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 150d739..6448c43 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -3,13 +3,13 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.11"
+    python: "3.12"
 
 mkdocs:
   configuration: mkdocs.yml
 
 python:
   install:
-  - requirements: requirements.txt
-  - requirements: requirements-dev.txt
-  - path: .
+    - path: .
+      extra_requirements:
+        - dev
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0bd0a3e..dc714b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,16 @@
 # Changelog
 
-## [unreleased]
+## [unreleased] --
 
+* Removed requirements.txt and requirements-dev.txt
+
+## [2.3.3] -- 2025-04-27
+
+* Fixed Atom feed encoding to 'utf-8'
 * Added Python 3.13 to github actions
+* `requirements*.txt` files are handled by pip-tools. Updates are handled by
+  make update-requirements based on the dependencies described in the
+  pyproject.toml
 
 ## [2.3.2] -- 2024-10-13
 
diff --git a/Makefile b/Makefile
index cbaadaa..116c0dc 100644
--- a/Makefile
+++ b/Makefile
@@ -16,11 +16,9 @@ endif
 .PHONY: all
 all: lint mypy test test-release
 
-$(VENV): requirements.txt requirements-dev.txt pyproject.toml
+$(VENV): pyproject.toml
 	$(PY) -m venv $(VENV)
-	$(BIN)/pip install --upgrade -r requirements.txt
-	$(BIN)/pip install --upgrade -r requirements-dev.txt
-	$(BIN)/pip install -e .['dev']
+	$(BIN)/pip install --upgrade -e .['dev']
 	touch $(VENV)
 
 .PHONY: test
diff --git a/blag/blag.py b/blag/blag.py
index ed6db15..99b70e2 100644
--- a/blag/blag.py
+++ b/blag/blag.py
@@ -396,7 +396,7 @@ def generate_feed(
         )
 
     with open(f"{output_dir}/atom.xml", "w") as fh:
-        feed.write(fh, encoding="utf8")
+        feed.write(fh, encoding='utf-8')
 
 
 def generate_index(
diff --git a/blag/version.py b/blag/version.py
index deff8d1..2cf16d9 100644
--- a/blag/version.py
+++ b/blag/version.py
@@ -1,3 +1,3 @@
 """Version information for the blag package."""
 
-__VERSION__ = "2.3.2"
+__VERSION__ = "2.3.3"
diff --git a/debian/changelog b/debian/changelog
index 453e93e..98e3816 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,13 @@
+blag (2.3.3) unstable; urgency=medium
+
+  * Fixed Atom feed encoding to 'utf-8'
+  * Added Python 3.13 to github actions
+  * `requirements*.txt` files are handled by pip-tools. Updates are handled by
+    make update-requirements based on the dependencies described in the
+    pyproject.toml
+
+ -- Bastian Venthur <venthur@debian.org>  Sun, 27 Apr 2025 11:42:13 +0200
+
 blag (2.3.2) unstable; urgency=medium
 
   * Ignore FileNotFoundError when trying to get the last modified time of
diff --git a/pyproject.toml b/pyproject.toml
index c51e644..0a2aa14 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,13 +10,13 @@ authors = [
 description = "blog-aware, static site generator"
 keywords = ["markdown", "blag", "blog", "static site generator", "cli"]
 readme = "README.md"
-license = { file="LICENSE" }
+license-files = ["LICENSE"]
 requires-python = ">=3.10"
 dynamic = ["version"]
 dependencies = [
-    "markdown",
     "feedgenerator",
     "jinja2",
+    "markdown",
     "pygments",
 ]
 
@@ -34,13 +34,13 @@ dev = [
     "mkdocs",
     "mkdocs-material",
     "mkdocstrings[python]",
-    "twine",
-    "wheel",
+    "mypy",
     "pytest",
     "pytest-cov",
     "ruff",
-    "mypy",
+    "twine",
     "types-markdown",
+    "wheel",
 ]
 
 [tool.setuptools.dynamic]
diff --git a/requirements-dev.txt b/requirements-dev.txt
deleted file mode 100644
index 3bf2a90..0000000
--- a/requirements-dev.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-build==1.2.2.post1
-mkdocs==1.6.1
-mkdocs-material==9.5.49
-mkdocstrings[python]==0.27.0
-twine==6.0.1
-wheel==0.45.1
-pytest==8.3.4
-pytest-cov==6.0.0
-ruff==0.8.4
-mypy==1.14.0
-types-markdown==3.7.0.20241204
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 9a67d85..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-markdown==3.7
-feedgenerator==2.1.0
-jinja2==3.1.5
-pygments==2.18.0
diff --git a/tests/test_blag.py b/tests/test_blag.py
index c7d1ca8..9311b39 100644
--- a/tests/test_blag.py
+++ b/tests/test_blag.py
@@ -99,6 +99,15 @@ def test_generate_feed_with_description(cleandir: str) -> None:
     assert '<content type="html">content' in feed
 
 
+def test_feed_is_unicode(cleandir: str) -> None:
+    """Test generate_feed."""
+    articles: list[tuple[str, dict[str, Any]]] = []
+    blag.generate_feed(articles, "build", " ", " ", " ", " ")
+    with open("build/atom.xml") as fh:
+        feed = fh.read()
+    assert 'encoding="utf-8"' in feed
+
+
 def test_parse_args_build() -> None:
     """Test parse_args with build."""
     # test default args