diff --git a/pyproject.toml b/pyproject.toml
index e15c9c2817db186ff872ab7e11132b5d8b0d2b03..42cdd4d4239e72581b338dd7db6e271b979ebaf4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,6 @@ dependencies = [
     "h5py",
     "importlib_resources",
     "matplotlib",
-    "mpi4py",
     "natsort",
     "nbconvert",
     "numpy",