diff --git a/davinci/gcalendar/views.py b/davinci/gcalendar/views.py
index 0cc172e..abca5a6 100644
--- a/davinci/gcalendar/views.py
+++ b/davinci/gcalendar/views.py
@@ -17,7 +17,7 @@ flow = Flow.from_client_secrets_file(client_secrets_file=settings.GOOGLE_CLIENT_
 
 def oauth2_view(request):
     callback_url = reverse("oauth2callback")
-    flow.redirect_uri = request.build_absolute_uri(callback_url)
+    flow.redirect_uri = request.build_absolute_uri(callback_url).replace('http:', 'https:')
     flow.oauth2session.redirect_uri = flow.redirect_uri
     auth_url, _ = flow.authorization_url(access_type='offline', prompt='consent', include_granted_scopes='true')
     return redirect(auth_url)