diff --git a/CHANGELOG.md b/CHANGELOG.md
index e627cee..7021437 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to the OpenClaw Home Assistant Integration will be documented in this file.
 
+## [0.1.20] - 2026-02-20
+
+### Changed
+- Added versioned card resource URL (`/openclaw/openclaw-chat-card.js?v=...`) to reduce stale frontend caching issues.
+- Added runtime source diagnostics (`import.meta.url`) in card console output to verify which script file is actually loaded.
+- Updated root loader shim to import versioned card bundle URL.
+
 ## [0.1.19] - 2026-02-20
 
 ### Changed
diff --git a/custom_components/openclaw/__init__.py b/custom_components/openclaw/__init__.py
index 66ce295..460abb8 100644
--- a/custom_components/openclaw/__init__.py
+++ b/custom_components/openclaw/__init__.py
@@ -70,8 +70,10 @@ _MAX_CHAT_HISTORY = 200
 # Path to the chat card JS inside the integration package (custom_components/openclaw/www/)
 _CARD_FILENAME = "openclaw-chat-card.js"
 _CARD_PATH = Path(__file__).parent / "www" / _CARD_FILENAME
-# URL at which the card JS will be served (registered via register_static_path)
-_CARD_URL = f"/openclaw/{_CARD_FILENAME}"
+# URL at which the card JS is served (registered via register_static_path)
+_CARD_STATIC_URL = f"/openclaw/{_CARD_FILENAME}"
+# Versioned URL used for Lovelace resource registration to avoid stale browser cache
+_CARD_URL = f"{_CARD_STATIC_URL}?v=0.1.20"
 
 type OpenClawConfigEntry = ConfigEntry
 
@@ -259,13 +261,13 @@ async def _async_register_static_path(hass: HomeAssistant) -> str | None:
         from homeassistant.components.http import StaticPathConfig  # noqa: PLC0415
 
         await hass.http.async_register_static_paths(
-            [StaticPathConfig(_CARD_URL, str(_CARD_PATH), cache_headers=True)]
+            [StaticPathConfig(_CARD_STATIC_URL, str(_CARD_PATH), cache_headers=True)]
         )
     except (ImportError, AttributeError):
-        hass.http.register_static_path(_CARD_URL, str(_CARD_PATH), True)
+        hass.http.register_static_path(_CARD_STATIC_URL, str(_CARD_PATH), True)
 
     hass.data[static_key] = True
-    _LOGGER.debug("Registered static path: %s", _CARD_URL)
+    _LOGGER.debug("Registered static path: %s", _CARD_STATIC_URL)
     return _CARD_URL
 
 
diff --git a/custom_components/openclaw/manifest.json b/custom_components/openclaw/manifest.json
index 6543396..421e936 100644
--- a/custom_components/openclaw/manifest.json
+++ b/custom_components/openclaw/manifest.json
@@ -8,7 +8,7 @@
   "iot_class": "local_polling",
   "issue_tracker": "https://github.com/techartdev/OpenClawHomeAssistant/issues",
   "requirements": [],
-  "version": "0.1.19",
+  "version": "0.1.20",
   "dependencies": ["conversation"],
   "after_dependencies": ["hassio", "lovelace"]
 }
diff --git a/custom_components/openclaw/www/openclaw-chat-card.js b/custom_components/openclaw/www/openclaw-chat-card.js
index f00fa06..193965e 100644
--- a/custom_components/openclaw/www/openclaw-chat-card.js
+++ b/custom_components/openclaw/www/openclaw-chat-card.js
@@ -13,7 +13,7 @@
  * + subscribes to openclaw_message_received events.
  */
 
-const CARD_VERSION = "0.2.0";
+const CARD_VERSION = "0.2.1";
 
 // Max time (ms) to show the thinking indicator before falling back to an error
 const THINKING_TIMEOUT_MS = 120_000;
@@ -1055,3 +1055,5 @@ console.info(
   "color: white; background: #2563eb; font-weight: bold; padding: 2px 6px; border-radius: 4px 0 0 4px;",
   "color: #2563eb; background: #e5e7eb; font-weight: bold; padding: 2px 6px; border-radius: 0 4px 4px 0;"
 );
+
+console.info("OPENCLAW-CHAT-CARD source", import.meta.url);
diff --git a/www/openclaw-chat-card.js b/www/openclaw-chat-card.js
index b6f3e50..ec37ca5 100644
--- a/www/openclaw-chat-card.js
+++ b/www/openclaw-chat-card.js
@@ -1,7 +1,9 @@
 (async () => {
   try {
     if (!customElements.get("openclaw-chat-card")) {
-      await import("/openclaw/openclaw-chat-card.js");
+      const src = "/openclaw/openclaw-chat-card.js?v=0.1.20";
+      console.info("OpenClaw loader importing", src);
+      await import(src);
     }
   } catch (err) {
     console.error("OpenClaw: failed to load chat card bundle from /openclaw/openclaw-chat-card.js", err);