diff --git a/package.json b/package.json
index 3403576..0aa68cd 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "react": "^19.2.0",
     "react-dom": "^19.2.0",
     "regenerator-runtime": "^0.14.1",
-    "typescript": "^5.9.3"
+    "typescript": "^6.0.3"
   },
   "peerDependencies": {
     "react": ">=18.0.0",
diff --git a/tests/listy.behavior.test.tsx b/tests/listy.behavior.test.tsx
index cf831a2..ac8ec7a 100644
--- a/tests/listy.behavior.test.tsx
+++ b/tests/listy.behavior.test.tsx
@@ -23,7 +23,7 @@ jest.mock('@rc-component/virtual-list', () => {
     getSize: () => ({ top: 0, bottom: 0 }),
   };
   let scrollHandler = (config: any) => {};
-  let lastProps = null;
+  let lastProps: any = null;
 
   const MockVirtualList = React.forwardRef((props: any, ref: any) => {
     lastProps = props;
@@ -286,7 +286,7 @@ describe('Listy behaviors', () => {
         ref={ref}
         data={[{ id: 1 }]}
         group={undefined}
-        itemRender={(item) => <div>{item.id}</div>}
+        itemRender={(item: { id: number }) => <div>{item.id}</div>}
         prefixCls="rc-listy"
         rowKey="id"
       />,
@@ -308,7 +308,7 @@ describe('Listy behaviors', () => {
           key: (item: { id: number; group: string }) => item.group,
           title,
         }}
-        itemRender={(item) => <div>{item.id}</div>}
+        itemRender={(item: { id: number }) => <div>{item.id}</div>}
         prefixCls="rc-listy"
         rowKey="id"
       />,
@@ -325,9 +325,9 @@ describe('Listy behaviors', () => {
       <RawList
         data={[{ id: 1 }]}
         group={undefined}
-        itemRender={(item) => <div>{item.id}</div>}
+        itemRender={(item: { id: number }) => <div>{item.id}</div>}
         prefixCls="rc-listy"
-        rowKey={(item) => `item-${item.id}`}
+        rowKey={(item: { id: number }) => `item-${item.id}`}
       />,
     );
 
@@ -341,7 +341,7 @@ describe('Listy behaviors', () => {
       <RawList
         data={[{ id: 1 }]}
         group={undefined}
-        itemRender={(item) => (
+        itemRender={(item: { id: number }) => (
           <>
             <span>{item.id}</span>
           </>
diff --git a/tsconfig.json b/tsconfig.json
index 464824d..39898e6 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,17 +1,16 @@
 {
   "compilerOptions": {
     "target": "esnext",
-    "moduleResolution": "node",
-    "baseUrl": "./",
+    "moduleResolution": "bundler",
     "jsx": "react",
     "declaration": true,
     "skipLibCheck": true,
     "esModuleInterop": true,
     "allowSyntheticDefaultImports": true,
     "paths": {
-      "@/*": ["src/*"],
-      "@@/*": [".dumi/tmp/*"],
-      "@rc-component/listy": ["src/index.ts"]
+      "@/*": ["./src/*"],
+      "@@/*": ["./.dumi/tmp/*"],
+      "@rc-component/listy": ["./src/index.ts"]
     },
     "types": ["@testing-library/jest-dom", "node"]
   }
diff --git a/typings.d.ts b/typings.d.ts
new file mode 100644
index 0000000..1ea3960
--- /dev/null
+++ b/typings.d.ts
@@ -0,0 +1 @@
+declare module '*.less';