diff --git a/VERSION b/VERSION
index 042593a..10cad67 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.11.4.1
+2.11.4.2
diff --git a/src/providers/grok/grok-core.js b/src/providers/grok/grok-core.js
index b363fe1..f4c3aca 100644
--- a/src/providers/grok/grok-core.js
+++ b/src/providers/grok/grok-core.js
@@ -319,6 +319,10 @@ export class GrokApiService {
     }
 
     buildPayload(modelId, requestBody) {
+        if (requestBody && Object.prototype.hasOwnProperty.call(requestBody, 'tools')) {
+            delete requestBody.tools;
+        }
+
         const rawModelId = typeof modelId === 'string' ? modelId : '';
         const normalizedModelId = normalizeGrokModelId(rawModelId);
         const mapping = MODEL_MAPPING[normalizedModelId] || MODEL_MAPPING['grok-3'];