diff --git a/pyproject.toml b/pyproject.toml
index df7f0eb..c2fc784 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ tutorials = ["matplotlib", "scipy", "emcee", "pymc>=5.26.1", "tqdm", "numpyro"]
 "Bug Tracker" = "https://github.com/exoplanet-dev/celerite2/issues"
 
 [build-system]
-requires = ["scikit-build-core", "numpy", "pybind11", "jax>=0.8.0; python_version >= '3.11'", "jaxlib>=0.8.0"]
+requires = ["scikit-build-core", "numpy", "pybind11", "jax==0.8.0"]
 build-backend = "scikit_build_core.build"
 
 [tool.scikit-build]