diff --git a/malariagen_data/af1.py b/malariagen_data/af1.py
index 1380fc5f3..c949d31a6 100644
--- a/malariagen_data/af1.py
+++ b/malariagen_data/af1.py
@@ -8,7 +8,7 @@
 MAJOR_VERSION_NUMBER = 1
 MAJOR_VERSION_PATH = "v1.0"
 CONFIG_PATH = "v1.0-config.json"
-GCS_DEFAULT_URL = "gs://vo_afun_release/"
+GCS_DEFAULT_URL = "gs://vo_afun_release_master_us_central1/"
 GCS_REGION_URLS = {
     "us-central1": "gs://vo_afun_release_master_us_central1",
 }
diff --git a/malariagen_data/ag3.py b/malariagen_data/ag3.py
index 430d50c58..c76643cb8 100644
--- a/malariagen_data/ag3.py
+++ b/malariagen_data/ag3.py
@@ -13,7 +13,7 @@
 MAJOR_VERSION_NUMBER = 3
 MAJOR_VERSION_PATH = "v3"
 CONFIG_PATH = "v3-config.json"
-GCS_DEFAULT_URL = "gs://vo_agam_release/"
+GCS_DEFAULT_URL = "gs://vo_agam_release_master_us_central1/"
 GCS_REGION_URLS = {
     "us-central1": "gs://vo_agam_release_master_us_central1",
 }