diff --git a/frontend/components/knowledge-filter-panel.tsx b/frontend/components/knowledge-filter-panel.tsx
index 9db1910f..a5b575cc 100644
--- a/frontend/components/knowledge-filter-panel.tsx
+++ b/frontend/components/knowledge-filter-panel.tsx
@@ -1,7 +1,7 @@
 "use client";
 
 import { useState, useEffect, useRef } from "react";
-import { X, Save, RefreshCw } from "lucide-react";
+import { X, RefreshCw } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import {
   Card,
@@ -15,7 +15,6 @@ import { Label } from "@/components/ui/label";
 import { Textarea } from "@/components/ui/textarea";
 import { MultiSelect } from "@/components/ui/multi-select";
 import { Slider } from "@/components/ui/slider";
-import { cn } from "@/lib/utils";
 import { useKnowledgeFilter } from "@/contexts/knowledge-filter-context";
 import { useDeleteFilter } from "@/app/api/mutations/useDeleteFilter";
 import { useUpdateFilter } from "@/app/api/mutations/useUpdateFilter";