diff --git a/src/@types/css-tree.d.ts b/src/@types/css-tree.d.ts
new file mode 100644
index 0000000..c3a8bde
--- /dev/null
+++ b/src/@types/css-tree.d.ts
@@ -0,0 +1,19 @@
+declare module 'css-tree/walker' {
+  import { walk } from 'css-tree';
+
+  export default walk;
+}
+declare module 'css-tree/utils' {
+  export { clone, List } from 'css-tree';
+}
+
+declare module 'css-tree/generator' {
+  import { generate } from 'css-tree';
+
+  export default generate;
+}
+declare module 'css-tree/parser' {
+  import { parse } from 'css-tree';
+
+  export default parse;
+}
diff --git a/src/cascade.ts b/src/cascade.ts
index f58220f..9477c4d 100644
--- a/src/cascade.ts
+++ b/src/cascade.ts
@@ -1,4 +1,4 @@
-import { type Block, type CssNode, } from 'css-tree';
+import { type Block, type CssNode } from 'css-tree';
 import walk from 'css-tree/walker';
 
 import {
diff --git a/src/fallback.ts b/src/fallback.ts
index f2ebcbe..563645e 100644
--- a/src/fallback.ts
+++ b/src/fallback.ts
@@ -9,8 +9,8 @@ import {
   type SelectorList,
   type Value,
 } from 'css-tree';
+import { clone, List } from 'css-tree/utils';
 import walk from 'css-tree/walker';
-import {clone, List} from 'css-tree/utils';
 import { nanoid } from 'nanoid/non-secure';
 
 import { getCSSPropertyValue } from './dom.js';
diff --git a/src/utils.ts b/src/utils.ts
index fa3aad0..150ea9b 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -8,9 +8,9 @@ import {
   type SelectorList,
   type Value,
 } from 'css-tree';
-import {clone} from 'css-tree/utils';
-import parse from 'css-tree/parser';
 import generate from 'css-tree/generator';
+import parse from 'css-tree/parser';
+import { clone } from 'css-tree/utils';
 import { nanoid } from 'nanoid/non-secure';
 
 import type { Selector } from './dom.js';
@@ -18,7 +18,7 @@ import type { Selector } from './dom.js';
 export const INSTANCE_UUID = nanoid();
 
 // https://github.com/import-js/eslint-plugin-import/issues/3019
- 
+
 export interface DeclarationWithValue extends Declaration {
   value: Value;
 }