diff --git a/requirements.txt b/requirements.txt
index fe29a3e..c8c85df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,6 @@ spaceweather>=0.2.4
 atmosphericRadiationDoseAndFlux >= 1.0.3
 kpindex >= 2.0.0
 ipywidgets >= 8.1.5
-dask >= 2025.1.0
-pyarrow >= 18.1.0
+dask >= 2022.0.0
+pyarrow >= 12.0.0
 
diff --git a/setup.py b/setup.py
index 81d7fbc..88eda2e 100644
--- a/setup.py
+++ b/setup.py
@@ -56,8 +56,8 @@
                         'atmosphericRadiationDoseAndFlux >= 1.0.3',
                         'kpindex >= 2.0.0',
                         'ipywidgets >= 8.1.5',
-                        'dask>=2025.1.0',
-                        'pyarrow >= 18.1.0'],
+                        'dask >= 2022.0.0',
+                        'pyarrow >= 12.0.0'],
     #install_requires,
     setup_requires=['pytest-runner','wheel'],
     tests_require=['pytest'],