diff --git a/malariagen_data/pf8_config.json b/malariagen_data/pf8_config.json
index 71aaf3f43..7b98b1919 100644
--- a/malariagen_data/pf8_config.json
+++ b/malariagen_data/pf8_config.json
@@ -1,5 +1,5 @@
 {
-    "default_url": "s3://pf8-release/" ,
+    "default_url": "gs://pf8-release/" ,
     "metadata_path": "metadata/Pf8_samples.txt",
     "reference_path": "reference/PlasmoDB-54-Pfalciparum3D7-Genome.zarr/",
     "reference_contigs": [
diff --git a/tests/integration/test_pf8.py b/tests/integration/test_pf8.py
index efdcfa814..a316a5831 100644
--- a/tests/integration/test_pf8.py
+++ b/tests/integration/test_pf8.py
@@ -16,7 +16,6 @@ def setup_pf8(url="simplecache::gs://pf8-release/", **storage_kwargs):
 @pytest.mark.parametrize(
     "url",
     [
-        "s3://pf8-release/",
         "gs://pf8-release/",
         "gcs://pf8-release/",
         "gs://pf8-release",