diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b991239..2522b88 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -57,6 +57,11 @@ jobs:
           platforms: all
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.12.0
+        env:
+          # Ideally we'd specify this in the [project] section of pyproject.toml,
+          # but this causes issues with poetry.
+          # See https://cibuildwheel.readthedocs.io/en/stable/options/#requires-python
+          CIBW_PROJECT_REQUIRES_PYTHON: ">=3.10"
         with:
           output-dir: dist
       - name: Upload artifacts
diff --git a/pyproject.toml b/pyproject.toml
index 373c0e4..0cd4f4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,6 +84,3 @@ archs = ["universal2"]
 [build-system]
 requires = ["poetry-core>=1.0.0", "setuptools>=40.6.0", "Cython>=0.29.0"]
 build-backend = "poetry.core.masonry.api"
-
-[project]
-requires-python = ">=3.10"