diff --git a/compose.local.yaml b/compose.local.yaml
index 8d64c46..f4e342e 100644
--- a/compose.local.yaml
+++ b/compose.local.yaml
@@ -65,7 +65,11 @@ services:
       retries: 30
 
   storage:
-    image: minio/minio:RELEASE.2025-04-22T22-12-26Z
+    # quay.io, not Docker Hub: minio/minio there now answers anonymous pulls
+    # with 401 authentication required, which breaks any runner that is not
+    # logged in. Same image — identical image ID. Override MINIO_IMAGE to use
+    # a mirror of your own.
+    image: ${MINIO_IMAGE:-quay.io/minio/minio:RELEASE.2025-04-22T22-12-26Z}
     command: server /data --console-address :9001
     environment:
       MINIO_ROOT_USER: ${MINIO_ROOT_USER:-dtf_local}
@@ -95,7 +99,7 @@ services:
     restart: on-failure
 
   storage-init:
-    image: minio/minio:RELEASE.2025-04-22T22-12-26Z
+    image: ${MINIO_IMAGE:-quay.io/minio/minio:RELEASE.2025-04-22T22-12-26Z}
     entrypoint: [/bin/sh, /init.sh]
     environment:
       MINIO_ROOT_USER: ${MINIO_ROOT_USER:-dtf_local}