diff --git a/content/427.md b/content/427.md
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+## Description
+
+<aside class="warning"><strong>Unofficial:</strong> This HTTP status code is not specified by any RFC.</aside>
+
+The `427 Invalid Digital Signature` status code indicates that the request has failed due to an invalid digital signature. 
+
+This status is useful in systems where digital signature validation is essential to ensure data authenticity and integrity.
+
+When an HTTP request is made, certain applications may require a digital signature to verify the sender's identity and the data's integrity. If this signature is incorrect, expired, or altered, the server may return a 427 error to indicate it could not validate the origin or integrity of the request.
+
+### See Also
+
+ - [Wikipedia Docs](https://fr.wikipedia.org/wiki/Liste_des_codes_HTTP)
diff --git a/lib/statuses.js b/lib/statuses.js
index 956db3d..958a977 100644
--- a/lib/statuses.js
+++ b/lib/statuses.js
@@ -51,6 +51,7 @@ const statuses = {
   424: { code: 424, message: 'Failed Dependency' },
   425: { code: 425, message: 'Too Early' },
   426: { code: 426, message: 'Upgrade Required' },
+  427: { code: 427, message: 'Invalid Digital Signature' },
   428: { code: 428, message: 'Precondition Required' },
   429: { code: 429, message: 'Too Many Requests' },
   431: { code: 431, message: 'Request Header Fields Too Large' },
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