diff --git a/codes.json b/codes.json
index fdb3111..68ffbaf 100644
--- a/codes.json
+++ b/codes.json
@@ -525,5 +525,15 @@
       "doc": "Official Documentation @ https://datatracker.ietf.org/doc/html/rfc7540#section-9.1.2",
       "description": "Defined in the specification of HTTP/2 to indicate that a server is not able to produce a response for the combination of scheme and authority that are included in the request URI."
     }
+  },
+  {
+    "code": 425,
+    "phrase": "Too Early",
+    "constant": "TOO_EARLY",
+    "isDeprecated": false,
+    "comment": {
+      "doc": "Official Documentation @ https://datatracker.ietf.org/doc/html/rfc8470#section-5.2",
+      "description": "Indicates that the server is unwilling to risk processing a request that might be replayed, which creates the potential for a replay attack."
+    }
   }
 ]