diff --git a/services/health.service.js b/services/health.service.js
index b9e3ce7..a5f34fc 100644
--- a/services/health.service.js
+++ b/services/health.service.js
@@ -79,9 +79,9 @@ const CHECKS = [
   {
     name:     'storage',
     critical: false,
-    enabled:  !!process.env.S3_ENDPOINT,
+    enabled:  !!(process.env.S3_ENDPOINT || process.env.S3_PUBLIC_URL),
     skipNote: 'S3_ENDPOINT is not configured',
-    meta:     { provider: 's3', endpoint: process.env.S3_ENDPOINT, bucket: process.env.S3_BUCKET },
+    meta:     { provider: 's3', endpoint: process.env.S3_PUBLIC_URL ?? process.env.S3_ENDPOINT, bucket: process.env.S3_BUCKET },
     run:      pingS3,
   },
   {
diff --git a/services/s3.service.js b/services/s3.service.js
index d3ad2c4..4ba4192 100644
--- a/services/s3.service.js
+++ b/services/s3.service.js
@@ -168,7 +168,7 @@ async function getObjectStream(key) {
 }
 
 async function ping() {
-  await s3.send(new HeadBucketCommand({ Bucket: DEFAULT_BUCKET }));
+  await s3Public.send(new HeadBucketCommand({ Bucket: DEFAULT_BUCKET }));
 }
 
 module.exports = { uploadFile, deleteFile, getSignedDownloadUrl, getObjectStream, ping };
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