diff --git a/README.md b/README.md
index 5654a14..1f897a2 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ dependencies = ["numpy"]
 dynamic = ["version", "description"]
 
 [build-system] # How pip and other frontends should build this project
-requires = ["py-build-cmake~=0.2.0a3"]
+requires = ["py-build-cmake~=0.2.0a4"]
 build-backend = "py_build_cmake.build"
 
 [tool.py-build-cmake.module] # Where to find the Python module to package
diff --git a/examples/minimal-debug-component/debug/pyproject.toml b/examples/minimal-debug-component/debug/pyproject.toml
index 58b3418..61b42ce 100644
--- a/examples/minimal-debug-component/debug/pyproject.toml
+++ b/examples/minimal-debug-component/debug/pyproject.toml
@@ -7,12 +7,12 @@ authors = [{ "name" = "Pieter P", "email" = "pieter.p.dev@outlook.com" }]
 keywords = ["addition", "subtraction", "pybind11"]
 classifiers = []
 urls = { "Documentation" = "https://tttapa.github.io/" }
-dependencies = ["minimal_comp==0.2.0a3"]
-version = "0.2.0a3"
+dependencies = ["minimal_comp==0.2.0a4"]
+version = "0.2.0a4"
 description = "Debug symbols for the minimal package."
 
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3", "pybind11", "pybind11-stubgen"]
+requires = ["py-build-cmake~=0.2.0a4", "pybind11", "pybind11-stubgen"]
 build-backend = "py_build_cmake.build_component"
 
 [tool.py-build-cmake.component]
diff --git a/examples/minimal-debug-component/pyproject.toml b/examples/minimal-debug-component/pyproject.toml
index dd332dc..1249fe5 100644
--- a/examples/minimal-debug-component/pyproject.toml
+++ b/examples/minimal-debug-component/pyproject.toml
@@ -24,10 +24,10 @@ dynamic = ["version", "description"]
 
 [project.optional-dependencies]
 docs = ["sphinx~=5.1", "matplotlib", "breathe", "furo"]
-debug = ["minimal-debug==0.2.0a3"]
+debug = ["minimal-debug==0.2.0a4"]
 
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3"]
+requires = ["py-build-cmake~=0.2.0a4"]
 build-backend = "py_build_cmake.build"
 
 [tool.py-build-cmake.module]
diff --git a/examples/minimal-debug-component/src-python/minimal_comp/__init__.py b/examples/minimal-debug-component/src-python/minimal_comp/__init__.py
index 419ce55..d355574 100644
--- a/examples/minimal-debug-component/src-python/minimal_comp/__init__.py
+++ b/examples/minimal-debug-component/src-python/minimal_comp/__init__.py
@@ -1,4 +1,4 @@
 """
 A simple, minimal example of building a Python C module using CMake.
 """
-__version__ = '0.2.0a3'
\ No newline at end of file
+__version__ = "0.2.0a4"
\ No newline at end of file
diff --git a/examples/minimal-program/pyproject.toml b/examples/minimal-program/pyproject.toml
index cf476ba..ab0c847 100644
--- a/examples/minimal-program/pyproject.toml
+++ b/examples/minimal-program/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = []
 dynamic = ["version", "description"]
 
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3"]
+requires = ["py-build-cmake~=0.2.0a4"]
 build-backend = "py_build_cmake.build"
 
 [tool.py-build-cmake.module]
diff --git a/examples/minimal-program/src-python/minimal_program_module/__init__.py b/examples/minimal-program/src-python/minimal_program_module/__init__.py
index fdc7b6f..d862c70 100644
--- a/examples/minimal-program/src-python/minimal_program_module/__init__.py
+++ b/examples/minimal-program/src-python/minimal_program_module/__init__.py
@@ -1,4 +1,4 @@
 """
 A simple, minimal example of building a C++ program using CMake.
 """
-__version__ = '0.2.0a3'
\ No newline at end of file
+__version__ = "0.2.0a4"
\ No newline at end of file
diff --git a/examples/minimal/README.md b/examples/minimal/README.md
index f902343..b2c6116 100644
--- a/examples/minimal/README.md
+++ b/examples/minimal/README.md
@@ -125,7 +125,7 @@ for more information about specific options. More information about the
 
 ```toml
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3"]
+requires = ["py-build-cmake~=0.2.0a4"]
 build-backend = "py_build_cmake.build"
 ```
 
diff --git a/examples/minimal/pyproject.toml b/examples/minimal/pyproject.toml
index ecebd64..bc56a36 100644
--- a/examples/minimal/pyproject.toml
+++ b/examples/minimal/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = []
 dynamic = ["version", "description"]
 
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3"]
+requires = ["py-build-cmake~=0.2.0a4"]
 build-backend = "py_build_cmake.build"
 
 [tool.py-build-cmake.module]
diff --git a/examples/minimal/src-python/minimal/__init__.py b/examples/minimal/src-python/minimal/__init__.py
index 419ce55..d355574 100644
--- a/examples/minimal/src-python/minimal/__init__.py
+++ b/examples/minimal/src-python/minimal/__init__.py
@@ -1,4 +1,4 @@
 """
 A simple, minimal example of building a Python C module using CMake.
 """
-__version__ = '0.2.0a3'
\ No newline at end of file
+__version__ = "0.2.0a4"
\ No newline at end of file
diff --git a/examples/nanobind-project/CMakeLists.txt b/examples/nanobind-project/CMakeLists.txt
index 907f071..8c4a3f6 100644
--- a/examples/nanobind-project/CMakeLists.txt
+++ b/examples/nanobind-project/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.26)
 project(nanobind-project VERSION 0.2.0)
-set(PY_VERSION_SUFFIX "a3")
+set(PY_VERSION_SUFFIX "a4")
 set(PY_FULL_VERSION ${PROJECT_VERSION}${PY_VERSION_SUFFIX})
 
 # Make sure that the Python and CMake versions match
diff --git a/examples/nanobind-project/pyproject.toml b/examples/nanobind-project/pyproject.toml
index 40f87da..a5e7af4 100644
--- a/examples/nanobind-project/pyproject.toml
+++ b/examples/nanobind-project/pyproject.toml
@@ -25,7 +25,7 @@ dynamic = ["version", "description"]
 add = "nanobind_project.add:main"
 
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3", "nanobind~=1.5.0", "nanobind-stubgen~=0.1.1"]
+requires = ["py-build-cmake~=0.2.0a4", "nanobind~=1.5.0", "nanobind-stubgen~=0.1.1"]
 build-backend = "py_build_cmake.build"
 
 [tool.py-build-cmake.module]
diff --git a/examples/nanobind-project/python-src/nanobind_project/__init__.py b/examples/nanobind-project/python-src/nanobind_project/__init__.py
index 8f2d293..e236412 100644
--- a/examples/nanobind-project/python-src/nanobind_project/__init__.py
+++ b/examples/nanobind-project/python-src/nanobind_project/__init__.py
@@ -1,2 +1,2 @@
 """Example project using the py-build-cmake build backend and nanobind."""
-__version__ = '0.2.0a3'
\ No newline at end of file
+__version__ = "0.2.0a4"
\ No newline at end of file
diff --git a/examples/pybind11-project/CMakeLists.txt b/examples/pybind11-project/CMakeLists.txt
index cde423b..c31c40c 100644
--- a/examples/pybind11-project/CMakeLists.txt
+++ b/examples/pybind11-project/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.17)
 project(pybind11-project VERSION 0.2.0)
-set(PY_VERSION_SUFFIX "a3")
+set(PY_VERSION_SUFFIX "a4")
 set(PY_FULL_VERSION ${PROJECT_VERSION}${PY_VERSION_SUFFIX})
 
 # Make sure that the Python and CMake versions match
diff --git a/examples/pybind11-project/pyproject.toml b/examples/pybind11-project/pyproject.toml
index 70f2a9f..127497c 100644
--- a/examples/pybind11-project/pyproject.toml
+++ b/examples/pybind11-project/pyproject.toml
@@ -26,7 +26,7 @@ dynamic = ["version", "description"]
 add = "pybind11_project.add:main"
 
 [build-system]
-requires = ["py-build-cmake~=0.2.0a3", "pybind11", "pybind11-stubgen"]
+requires = ["py-build-cmake~=0.2.0a4", "pybind11", "pybind11-stubgen"]
 build-backend = "py_build_cmake.build"
 
 [tool.py-build-cmake.module]
diff --git a/examples/pybind11-project/python-src/pybind11_project/__init__.py b/examples/pybind11-project/python-src/pybind11_project/__init__.py
index fc4e16d..4398340 100644
--- a/examples/pybind11-project/python-src/pybind11_project/__init__.py
+++ b/examples/pybind11-project/python-src/pybind11_project/__init__.py
@@ -1,2 +1,2 @@
 """Example project using the py-build-cmake build backend and pybind11."""
-__version__ = '0.2.0a3'
\ No newline at end of file
+__version__ = "0.2.0a4"
\ No newline at end of file
diff --git a/noxfile.py b/noxfile.py
index fb94b24..d3763cc 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -11,7 +11,7 @@ def example_projects(session: nox.Session):
         session.run("python", "-m", "build", ".")
         dist_dir = "dist"
     session.env["PIP_FIND_LINKS"] = os.path.abspath(dist_dir)
-    session.install("py-build-cmake~=0.2.0a3")
+    session.install("py-build-cmake~=0.2.0a4")
     with session.chdir("examples/minimal"):
         shutil.rmtree('.py-build-cmake_cache', ignore_errors=True)
         session.run("python", "-m", "build", ".")
@@ -43,7 +43,7 @@ def component(session: nox.Session):
         session.run("python", "-m", "build", ".")
         dist_dir = "dist"
     session.env["PIP_FIND_LINKS"] = os.path.abspath(dist_dir)
-    session.install("py-build-cmake~=0.2.0a3")
+    session.install("py-build-cmake~=0.2.0a4")
     with session.chdir("examples/minimal-debug-component"):
         shutil.rmtree('.py-build-cmake_cache', ignore_errors=True)
         session.install(".")
@@ -72,7 +72,7 @@ def editable(session: nox.Session):
         session.run("python", "-m", "build", ".")
         dist_dir = "dist"
     session.env["PIP_FIND_LINKS"] = os.path.abspath(dist_dir)
-    session.install("py-build-cmake~=0.2.0a3")
+    session.install("py-build-cmake~=0.2.0a4")
     for mode in ("wrapper", "hook", "symlink"):
         test_editable(session, mode)
 
@@ -83,7 +83,7 @@ def tests(session: nox.Session):
     dist_dir = os.getenv('PY_BUILD_CMAKE_WHEEL_DIR')
     if dist_dir:
         session.env["PIP_FIND_LINKS"] = os.path.abspath(dist_dir)
-        session.install("py-build-cmake~=0.2.0a3")
+        session.install("py-build-cmake~=0.2.0a4")
     else:
         session.install(".")
     session.run('pytest')
diff --git a/src/py_build_cmake/__init__.py b/src/py_build_cmake/__init__.py
index 2ecc6df..fd1a5ac 100644
--- a/src/py_build_cmake/__init__.py
+++ b/src/py_build_cmake/__init__.py
@@ -2,4 +2,4 @@
 Modern, PEP 517 compliant build backend for creating Python packages with
 extensions built using CMake.
 """
-__version__ = '0.2.0a3'
\ No newline at end of file
+__version__ = "0.2.0a4"
\ No newline at end of file