diff --git a/pyproject.toml b/pyproject.toml
index 5e0d66c182..4722101394 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ dependencies = [
   # TODO: We are only using our fork here because the most recent PyPI release
   # does not yet work with build isolation for Python 3.13. Once a version
   # newer than 3.12.1 is released we can revert to simply using "h5py".
-  "h5py @ git+https://github.com/firedrakeproject/h5py.git; python_version >= '3.13'",
+  "h5py @ git+https://github.com/firedrakeproject/h5py.git ; python_version >= '3.13'",
   "h5py; python_version < '3.13'",
   "petsc4py",
   "numpy",