diff --git a/src/handler/tools.tsx b/src/handler/tools.tsx
index f699bbb..c126213 100644
--- a/src/handler/tools.tsx
+++ b/src/handler/tools.tsx
@@ -9,7 +9,7 @@ export function defineTool<T = any, K extends string = string>(
     key: K,
     name: string,
     icon: () => JSX.Element,
-    defaultSettings: () => T = () => null,
+    defaultSettings: () => T = () => null as any,
 ): DefinedTool<T, K> {
     const tool: DefinedTool<T, K> = {
         key,
diff --git a/src/svg-tracer.ts b/src/svg-tracer.ts
index 8b60aa9..280bf6d 100644
--- a/src/svg-tracer.ts
+++ b/src/svg-tracer.ts
@@ -1,6 +1,5 @@
 import ImageTracer from "imagetracerjs";
 import type { TracerOptions } from "./interface";
-import { last } from "lodash";
 import { VERSION } from "./constants";