diff --git a/src/Jackett.Common/Definitions/52pt.yml b/src/Jackett.Common/Definitions/52pt.yml
index 41a33ff6a..19206f3ba 100644
--- a/src/Jackett.Common/Definitions/52pt.yml
+++ b/src/Jackett.Common/Definitions/52pt.yml
@@ -5,6 +5,8 @@ description: "52PT is a CHINESE Private Torrent Tracker for HD MOVIES / TV"
 language: zh-CN
 type: private
 encoding: UTF-8
+certificates:
+  - a66dce17f30d8b03be18502265e3dc09ec50b83b # expired 26-Mar-2023
 links:
   - https://52pt.site/