diff --git a/packages/connector-github/package.json b/packages/connector-github/package.json
index 61cfbbb7f..4959167ff 100644
--- a/packages/connector-github/package.json
+++ b/packages/connector-github/package.json
@@ -29,6 +29,7 @@
         "@logto/schemas": "^0.1.0",
         "@silverhand/essentials": "^1.1.0",
         "got": "^11.8.2",
+        "query-string": "^7.0.1",
         "zod": "^3.14.3"
     },
     "devDependencies": {
diff --git a/packages/connector-github/src/index.test.ts b/packages/connector-github/src/index.test.ts
index 27731c3ea..90fd0ee83 100644
--- a/packages/connector-github/src/index.test.ts
+++ b/packages/connector-github/src/index.test.ts
@@ -1,5 +1,6 @@
 import { ConnectorError, ConnectorErrorCodes, GetConnectorConfig } from '@logto/connector-types';
 import nock from 'nock';
+import * as qs from 'query-string';
 
 import GithubConnector from '.';
 import { accessTokenEndpoint, authorizationEndpoint, userInfoEndpoint } from './constant';
@@ -37,11 +38,16 @@ describe('getAccessToken', () => {
   });
 
   it('should get an accessToken by exchanging with code', async () => {
-    nock(accessTokenEndpoint).post('').reply(200, {
-      access_token: 'access_token',
-      scope: 'scope',
-      token_type: 'token_type',
-    });
+    nock(accessTokenEndpoint)
+      .post('')
+      .reply(
+        200,
+        qs.stringify({
+          access_token: 'access_token',
+          scope: 'scope',
+          token_type: 'token_type',
+        })
+      );
     const { accessToken } = await githubMethods.getAccessToken('code');
     expect(accessToken).toEqual('access_token');
   });
@@ -49,7 +55,7 @@ describe('getAccessToken', () => {
   it('throws SocialAuthCodeInvalid error if accessToken not found in response', async () => {
     nock(accessTokenEndpoint)
       .post('')
-      .reply(200, { access_token: '', scope: 'scope', token_type: 'token_type' });
+      .reply(200, qs.stringify({ access_token: '', scope: 'scope', token_type: 'token_type' }));
     await expect(githubMethods.getAccessToken('code')).rejects.toMatchError(
       new ConnectorError(ConnectorErrorCodes.SocialAuthCodeInvalid)
     );
@@ -78,11 +84,16 @@ describe('validateConfig', () => {
 
 describe('getUserInfo', () => {
   beforeEach(() => {
-    nock(accessTokenEndpoint).post('').reply(200, {
-      access_token: 'access_token',
-      scope: 'scope',
-      token_type: 'token_type',
-    });
+    nock(accessTokenEndpoint)
+      .post('')
+      .reply(
+        200,
+        qs.stringify({
+          access_token: 'access_token',
+          scope: 'scope',
+          token_type: 'token_type',
+        })
+      );
   });
 
   afterEach(() => {
diff --git a/packages/connector-github/src/index.ts b/packages/connector-github/src/index.ts
index 14c4e6f44..ded56a47c 100644
--- a/packages/connector-github/src/index.ts
+++ b/packages/connector-github/src/index.ts
@@ -11,6 +11,7 @@ import {
 } from '@logto/connector-types';
 import { assert, conditional } from '@silverhand/essentials';
 import got, { RequestError as GotRequestError } from 'got';
+import * as qs from 'query-string';
 
 import {
   authorizationEndpoint,
@@ -68,7 +69,7 @@ export default class GithubConnector implements SocialConnector {
       timeout: defaultTimeout,
     });
 
-    const result = accessTokenResponseGuard.safeParse(JSON.parse(httpResponse.body));
+    const result = accessTokenResponseGuard.safeParse(qs.parse(httpResponse.body));
 
     if (!result.success) {
       throw new ConnectorError(ConnectorErrorCodes.InvalidResponse, result.error.message);
@@ -98,6 +99,7 @@ export default class GithubConnector implements SocialConnector {
       if (!result.success) {
         throw new ConnectorError(ConnectorErrorCodes.InvalidResponse, result.error.message);
       }
+
       const { id, avatar_url: avatar, email, name } = result.data;
 
       return {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1dae51eaf..273a3a59e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -333,6 +333,7 @@ importers:
       lint-staged: ^13.0.0
       nock: ^13.2.2
       prettier: ^2.3.2
+      query-string: ^7.0.1
       ts-jest: ^27.1.1
       tsc-watch: ^5.0.0
       typescript: ^4.6.2
@@ -344,6 +345,7 @@ importers:
       '@silverhand/essentials': 1.1.7
       '@silverhand/jest-config': 0.14.0_tgc6da2oqazvrn56dzwolsqo5i
       got: 11.8.3
+      query-string: 7.0.1
       zod: 3.14.3
     devDependencies:
       '@jest/types': 27.5.1