diff --git a/pyproject.toml b/pyproject.toml
index 77aa510..dd8c933 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ dependencies = [
     "cftime",
     "pyarrow",
     "fastparquet",
-    "h3",
+    "h3==4.1.0",
     "netCDF4",
     "scipy",
     "rasterio",
diff --git a/src/openeo_gfmap/manager/job_splitters.py b/src/openeo_gfmap/manager/job_splitters.py
index e22cb11..da2ff90 100644
--- a/src/openeo_gfmap/manager/job_splitters.py
+++ b/src/openeo_gfmap/manager/job_splitters.py
@@ -113,7 +113,7 @@ def append_h3_index(
     geom_col = geom_col.to_crs(epsg=4326)
 
     polygons["h3index"] = geom_col.apply(
-        lambda pt: h3.geo_to_h3(pt.y, pt.x, grid_resolution)
+        lambda pt: h3.latlng_to_cell(pt.y, pt.x, grid_resolution)
     )
     return polygons