diff --git a/src/lib/s3.ts b/src/lib/s3.ts
index 6e11aa1..1b4c5b6 100644
--- a/src/lib/s3.ts
+++ b/src/lib/s3.ts
@@ -164,21 +164,48 @@ export interface BundleHistory {
   history: BundleEvent[];
 }
 
+/**
+ * Lists every object key under `prefix` (ListObjectsV2: up to 1000 keys per page, uses continuation).
+ */
+export async function listAllObjectKeysForPrefix(
+  s3: Pick<S3Client, "send">,
+  bucket: string,
+  prefix: string,
+): Promise<string[]> {
+  const keys: string[] = [];
+  let continuationToken: string | undefined;
+
+  for (;;) {
+    const listResponse = await s3.send(
+      new ListObjectsV2Command({
+        Bucket: bucket,
+        Prefix: prefix,
+        ContinuationToken: continuationToken,
+      }),
+    );
+
+    for (const obj of listResponse.Contents ?? []) {
+      if (obj.Key) {
+        keys.push(obj.Key);
+      }
+    }
+
+    if (!listResponse.IsTruncated || !listResponse.NextContinuationToken) {
+      break;
+    }
+    continuationToken = listResponse.NextContinuationToken;
+  }
+
+  return keys;
+}
+
 export async function getBundleHistory(
   bundleKey: string,
 ): Promise<BundleHistory | null> {
   const prefix = `bundles/${bundleKey}/`;
-  const listCommand = new ListObjectsV2Command({
-    Bucket: BUCKET_NAME,
-    Prefix: prefix,
-  });
-
-  const listResponse = await s3Client.send(listCommand);
-  const keys = listResponse.Contents?.map((obj) => obj.Key).filter(
-    Boolean,
-  ) as string[];
+  const keys = await listAllObjectKeysForPrefix(s3Client, BUCKET_NAME, prefix);
 
-  if (!keys || keys.length === 0) {
+  if (keys.length === 0) {
     return null;
   }