diff --git a/pyproject.toml b/pyproject.toml
index 3c671e9..ea284bf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,6 @@ dependencies = [
   "scipy>=1.9",
   "netCDF4>=1.6",
   "pyproj>=2.3",
-  "proj<9.8",
   "xarray>=2022.6.0",
   "pandas>=2",
   "cartopy>=0.21",