diff --git a/advisories/github-reviewed/2021/09/GHSA-jj53-8fmw-f2w2/GHSA-jj53-8fmw-f2w2.json b/advisories/github-reviewed/2021/09/GHSA-jj53-8fmw-f2w2/GHSA-jj53-8fmw-f2w2.json
index 4767e904647..661e40a590e 100644
--- a/advisories/github-reviewed/2021/09/GHSA-jj53-8fmw-f2w2/GHSA-jj53-8fmw-f2w2.json
+++ b/advisories/github-reviewed/2021/09/GHSA-jj53-8fmw-f2w2/GHSA-jj53-8fmw-f2w2.json
@@ -1,7 +1,7 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-jj53-8fmw-f2w2",
-  "modified": "2021-08-31T17:46:08Z",
+  "modified": "2024-09-24T15:37:56Z",
   "published": "2021-09-01T18:25:44Z",
   "aliases": [
     "CVE-2021-39163"
@@ -12,6 +12,10 @@
     {
       "type": "CVSS_V3",
       "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"
+    },
+    {
+      "type": "CVSS_V4",
+      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
     }
   ],
   "affected": [
@@ -56,6 +60,10 @@
       "type": "WEB",
       "url": "https://github.com/matrix-org/synapse/releases/tag/v1.41.1"
     },
+    {
+      "type": "WEB",
+      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-424.yaml"
+    },
     {
       "type": "WEB",
       "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF"