diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5355e8b..055d57a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,9 @@ jobs:
         with:
           submodules: true
       - name: Build wheels
-        uses: pypa/cibuildwheel@v3.2.1
+        # Pinned to main past v3.4.1 for CPython 3.15 beta support (PR #2833).
+        # Revisit once the next tagged release ships 3.15 metadata.
+        uses: pypa/cibuildwheel@ec0977e5f64e2ec8c1276eea62083c103613b756
         env:
           CIBW_ARCHS: ${{ matrix.platform.arch }}
         with:
diff --git a/pyproject.toml b/pyproject.toml
index 26cea97..661a1f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Topic :: Software Development :: Testing",
     "Topic :: System :: Benchmark",
     "Topic :: Utilities",
@@ -103,6 +104,7 @@ push = false
 
 [tool.cibuildwheel]
 build = "cp*{manylinux,macosx}*"
+enable = ["cpython-prerelease"]
 test-extras = ["build", "test", "compat"]
 test-command = "pytest -v --ignore={project}/tests/benchmarks {project}/tests"