diff --git a/github/MainClass.py b/github/MainClass.py
index 5b626ad265..e7ae7cb4e7 100644
--- a/github/MainClass.py
+++ b/github/MainClass.py
@@ -849,14 +849,18 @@ def get_access_token(self, installation_id, user_id=None):
             )
         elif response.status_code == 403:
             raise GithubException.BadCredentialsException(
-                status=response.status_code, data=response.text
+                status=response.status_code,
+                data=response.text,
+                headers=response.headers,
             )
         elif response.status_code == 404:
             raise GithubException.UnknownObjectException(
-                status=response.status_code, data=response.text
+                status=response.status_code,
+                data=response.text,
+                headers=response.headers,
             )
         raise GithubException.GithubException(
-            status=response.status_code, data=response.text
+            status=response.status_code, data=response.text, headers=response.headers
         )
 
     def get_installation(self, owner, repo):