diff --git a/README.md b/README.md
index 3d10345..39f1af4 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ With Yandex Config:
 ```js
 import { slugger } from '@archoleat/slugger';
 
-const url = await slugger('Кто такой фронтенд-разработчик. И как им стать?');
+const url = slugger('Кто такой фронтенд-разработчик. И как им стать?');
 
 // kto-takoj-frontend-razrabotchik-i-kak-im-stat'
 console.log(url)
@@ -38,7 +38,7 @@ With your config:
 ```js
 import { slugger } from '@archoleat/slugger';
 
-const url = await slugger(
+const url = slugger(
   'Кто такой фронтенд-разработчик. И как им стать?',
   {
     а: 'a',
diff --git a/specs/slugger.spec.ts b/specs/slugger.spec.ts
index 448a6c5..6ecbce2 100644
--- a/specs/slugger.spec.ts
+++ b/specs/slugger.spec.ts
@@ -3,7 +3,7 @@ import { slugger } from '#src/index.ts';
 
 describe('Slugger Function', () => {
   spec('should transliterate cyrillic text', async () => {
-    const result = await slugger('Классический борщ с говядиной');
+    const result = slugger('Классический борщ с говядиной');
 
     expect(result).toBe('klassicheskij-borshch-s-govyadinoj');
   });
@@ -17,7 +17,7 @@ describe('Slugger Function', () => {
     ];
 
     for (const { input, output } of tests) {
-      expect(await slugger(input)).toBe(output);
+      expect(slugger(input)).toBe(output);
     }
   });
 
@@ -33,7 +33,7 @@ describe('Slugger Function', () => {
     ];
 
     for (const { input, output } of tests) {
-      expect(await slugger(input)).toBe(output);
+      expect(slugger(input)).toBe(output);
     }
   });
 
@@ -47,7 +47,7 @@ describe('Slugger Function', () => {
 
     for (const { input, output } of tests) {
       expect(
-        await slugger(input, {
+        slugger(input, {
           а: 'a',
           б: 'b',
           в: 'v',
@@ -86,9 +86,9 @@ describe('Slugger Function', () => {
   });
 
   spec('should handle edge cases', async () => {
-    expect(await slugger('')).toBe('');
-    expect(await slugger('   ')).toBe('');
-    expect(await slugger('123')).toBe('123');
-    expect(await slugger('Привет Мир')).toBe('privet-mir');
+    expect(slugger('')).toBe('');
+    expect(slugger('   ')).toBe('');
+    expect(slugger('123')).toBe('123');
+    expect(slugger('Привет Мир')).toBe('privet-mir');
   });
 });
diff --git a/src/index.ts b/src/index.ts
index 1aecbc3..45c4152 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,4 @@
-const slugger = async (
-  text: string,
-  config?: Record<string, string>,
-): Promise<string> => {
+const slugger = (text: string, config?: Record<string, string>): string => {
   const transliterateMap: Record<string, string> = config ?? {
     а: 'a',
     б: 'b',