diff --git a/pyproject.toml b/pyproject.toml
index e2beb7f2..0066f713 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ authors = [
 dependencies = [
     "dask",
     "geopandas>=0.10",
-    "hydromt>=0.9.1",
+    "hydromt>=0.9.3,<0.10",
     "netcdf4",
     "numpy",
     "pandas",