diff --git a/custom_components/bahmcloud_store/core.py b/custom_components/bahmcloud_store/core.py
index 04f4b5a..ebe667c 100644
--- a/custom_components/bahmcloud_store/core.py
+++ b/custom_components/bahmcloud_store/core.py
@@ -3,6 +3,7 @@ from __future__ import annotations
 import asyncio
 import json
 import logging
+import time
 from dataclasses import dataclass
 from pathlib import Path
 from typing import Any
@@ -157,13 +158,25 @@ class BCSCore:
 
     async def _load_index_repos(self) -> tuple[list[RepoItem], int]:
         session = async_get_clientsession(self.hass)
+
+        # ---- CACHE BUSTING FIX (Phase B) ----
+        # Force store.yaml to always be reloaded from remote:
+        # - add timestamp query parameter
+        # - disable HTTP cache via headers
+        url = f"{self.config.store_url}?t={int(time.time())}"
+        headers = {
+            "Cache-Control": "no-cache",
+            "Pragma": "no-cache",
+        }
+
         try:
-            async with session.get(self.config.store_url, timeout=20) as resp:
+            async with session.get(url, timeout=20, headers=headers) as resp:
                 if resp.status != 200:
                     raise BCSError(f"store_url returned {resp.status}")
                 raw = await resp.text()
         except Exception as e:
             raise BCSError(f"Failed fetching store index: {e}") from e
+        # ---- END CACHE BUSTING FIX ----
 
         try:
             data = ha_yaml.parse_yaml(raw)