diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
index fac402e..520aad8 100644
--- a/.github/workflows/publish-release.yml
+++ b/.github/workflows/publish-release.yml
@@ -8,10 +8,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         fetch-depth: '0'
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v5
       with:
         python-version: '3.8'
     - shell: bash
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6e70cd3..5c6f7df 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,10 +11,10 @@ jobs:
         python-version: [3.8]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -33,7 +33,7 @@ jobs:
         make ci
 
     - name: Archive code coverage results
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: code-coverage-report
         path: htmlcov/*
diff --git a/tests/test_dmrpp.py b/tests/test_dmrpp.py
index bb945ca..7d54504 100644
--- a/tests/test_dmrpp.py
+++ b/tests/test_dmrpp.py
@@ -1,24 +1,24 @@
 import json
 import os
 import unittest
+from  xml.etree import ElementTree
 
 import requests
-import xml.etree.ElementTree as ElementTree
 
 import eosdis_store.dmrpp as dmr
 
 
 testpath = os.path.dirname(__file__)
 
+s3_folder = 'https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-eedtest-data/zarr-store'
 
 class Test(unittest.TestCase):
 
     test_files = [
-        'https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-staging/public/demo/zarr-store/f16_ssmis_20051022v7.nc.dmrpp',
-        'https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-staging/public/demo/zarr-store/3B-HHR.MS.MRG.3IMERG.20051022-S000000-E002959.0000.V06B.HDF5.dmrpp',
+        f'{s3_folder}/f16_ssmis_20051022v7.nc.dmrpp',
+        f'{s3_folder}/3B-HHR.MS.MRG.3IMERG.20051022-S000000-E002959.0000.V06B.HDF5.dmrpp',
         # MODIS data
         'https://archive.podaac.uat.earthdata.nasa.gov/podaac-uat-cumulus-protected/MODIS_A-JPL-L2P-v2019.0/20200911000001-JPL-L2P_GHRSST-SSTskin-MODIS_A-N-v02.0-fv01.0.nc.dmrpp',
-        # 'https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-staging/public/demo/zarr-store/3B-HHR.MS.MRG.3IMERG.20051022-S233000-E235959.1410.V06B.HDF5.dmrpp',
     ]
 
     @classmethod
diff --git a/tests/test_stores.py b/tests/test_stores.py
index a36026a..8b533a8 100644
--- a/tests/test_stores.py
+++ b/tests/test_stores.py
@@ -1,10 +1,10 @@
 import json
 import os
 import unittest
+from xml.etree import ElementTree
 
 import numpy as np
 import requests
-import xml.etree.ElementTree as ElementTree
 import xarray
 import zarr
 
@@ -12,13 +12,15 @@
 
 testpath = os.path.dirname(__file__)
 
+s3_folder = 'https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-eedtest-data/zarr-store'
+
 fixtures = [
     {
-        "url": 'https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-staging/public/demo/zarr-store/f16_ssmis_20051022v7.nc',
+        "url": f"{s3_folder}/f16_ssmis_20051022v7.nc",
         "aoi": (0, slice(400, 549, None), slice(1040, 1261, None))
     },
     {
-        "url": "https://harmony.uat.earthdata.nasa.gov/service-results/harmony-uat-staging/public/demo/zarr-store/3B-HHR.MS.MRG.3IMERG.20051022-S000000-E002959.0000.V06B.HDF5",
+        "url": f"{s3_folder}/3B-HHR.MS.MRG.3IMERG.20051022-S000000-E002959.0000.V06B.HDF5",
         "aoi": (0, slice(800, 1351, None), slice(1000, 1371, None))
     },
     {
@@ -61,7 +63,7 @@ def test_eosdis_store_open(self):
         assert(arrays[0][0] == 'atmosphere_cloud_liquid_water_content')
         arr = arrays[0][1]
         assert(type(arr) == zarr.core.Array)
-        assert(arr.name == '/atmosphere_cloud_liquid_water_content')       
+        assert(arr.name == '/atmosphere_cloud_liquid_water_content')
         assert(arr.shape == (2, 720, 1440))
 
     def test_eosdis_store_read(self):
@@ -137,7 +139,7 @@ def test_scale_offset(self):
         assert(not hasattr(wv, "scale_factor"))
         assert(not hasattr(wv, "add_offset"))
         arr = wv[fixtures[0]["aoi"]]
-        
+
         self.assertAlmostEqual(arr.mean().item(), mean * scale_factor + add_offset, places=5)
 
     def test_fillvalue(self):
@@ -166,5 +168,3 @@ def test_fillvalue(self):
         mean2 = np.nanmean(arr2)
 
         self.assertAlmostEqual(mean, mean2, places=4)
-
-        
\ No newline at end of file