diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index eed14edb44..db31045f51 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -17,11 +17,11 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install setuptools wheel twine
+        pip install setuptools build wheel twine
     - name: Build and publish
       env:
         TWINE_USERNAME: __token__
         TWINE_PASSWORD: ${{ secrets.PIP_PASSWORD }}
       run: |
-        python setup.py sdist bdist_wheel
+        python -m build
         twine upload dist/*
diff --git a/auto_editor/__init__.py b/auto_editor/__init__.py
index 36eeb1c943..a9f3269e1f 100644
--- a/auto_editor/__init__.py
+++ b/auto_editor/__init__.py
@@ -1,2 +1,2 @@
-__version__ = "23.46.1"
-version = "23w46a"
+__version__ = "23.51.1"
+version = "23w51a"
diff --git a/changelogs/changelog-23w51a.md b/changelogs/changelog-23w51a.md
new file mode 100644
index 0000000000..1c9b6ea039
--- /dev/null
+++ b/changelogs/changelog-23w51a.md
@@ -0,0 +1,11 @@
+# 23w51
+
+## What's Changed
+ - Upgrade pyav to 12.0.0
+ - Sources are now directly linked in the v3 format.
+ - Removed the `--source` and `--add` option
+ - Switch from setup.py to pyproject.toml
+
+Remember to upgrade setuptools! `pip install -U setuptools`
+
+**Full Changelog**: https://github.com/WyattBlue/auto-editor/compare/23w46a...23w51a
diff --git a/pyproject.toml b/pyproject.toml
index 55282218f2..654dfa9c4a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ requires-python = ">=3.10"
 dependencies = [
     "numpy>=1.22.0",
     "pillow==10.1.0",
-    "pyav==11.4.1",
+    "pyav==12.0.0",
     "ae-ffmpeg==1.1.*",
 ]
 keywords = [