diff --git a/src/lib/__tests__/pkce.test.js b/src/lib/__tests__/pkce.test.js
index 298cead..7992982 100644
--- a/src/lib/__tests__/pkce.test.js
+++ b/src/lib/__tests__/pkce.test.js
@@ -3,7 +3,7 @@ import {
   toSha256,
   toBase64Url,
   createRandomString,
-  createPKCECodeVerifier,
+  createPKCECodeChallenge,
 } from '../pkce'
 
 describe('createRandomString', () => {
@@ -52,18 +52,18 @@ describe('toBase64Url', () => {
   })
 })
 
-describe('createPKCECodeVerifier', () => {
+describe('createPKCECodeChallenge', () => {
   test('creates code challenge', async () => {
     const codeVerifier = createRandomString(43)
-    const codeChallenge = await createPKCECodeVerifier(codeVerifier)
+    const codeChallenge = await createPKCECodeChallenge(codeVerifier)
 
     expect(codeChallenge).toHaveLength(43)
   })
 
   test('creates unique code challenge', async () => {
     const codeVerifier = createRandomString(43)
-    const codeChallenge1 = await createPKCECodeVerifier(codeVerifier)
-    const codeChallenge2 = await createPKCECodeVerifier(codeVerifier)
+    const codeChallenge1 = await createPKCECodeChallenge(codeVerifier)
+    const codeChallenge2 = await createPKCECodeChallenge(codeVerifier)
 
     expect(codeChallenge1).toEqual(codeChallenge2)
   })
diff --git a/src/lib/pkce.ts b/src/lib/pkce.ts
index 4891367..473a6a1 100644
--- a/src/lib/pkce.ts
+++ b/src/lib/pkce.ts
@@ -35,9 +35,9 @@ export const createRandomString = (length: number = 34): string => {
   return randomString;
 }
 
-export const createPKCECodeVerifier = async (str: string): string => {
-  const hashed: Uint8Array = await toSha256(str)
-  const codeVerifier = toBase64Url(hashed)
-  return codeVerifier;
+export const createPKCECodeChallenge = async (codeVerifies: string): string => {
+  const hashed: Uint8Array = await toSha256(codeVerifies)
+  const codeChallenge = toBase64Url(hashed)
+  return codeChallenge;
 }