diff --git a/pyproject.toml b/pyproject.toml
index 88cdb44721..70d202689a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,6 @@ dependencies = [
   "cftime",
   "numpy",
   "dask",
-  "cftime",
   "psutil",
   "netCDF4",
   "zarr",