diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 581a048..4b31d74 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -31,6 +31,7 @@ Minor changes
 - Bump requests from 2.32.5 to 2.33.0 :pull:`106`
 - Bump tornado from 6.5.4 to 6.5.5 :pull:`105`
 - Add QUERY method and Accept-Query header [:pull:`114` by @rnewson]
+- Added and corrected HTTP status codes and messages 308, 414, and 425. [:pull:`114` by @apteryks]
 
 
 Version 2.0.0
diff --git a/src/sphinxcontrib/httpdomain/__init__.py b/src/sphinxcontrib/httpdomain/__init__.py
index 5a81d34..db839d2 100644
--- a/src/sphinxcontrib/httpdomain/__init__.py
+++ b/src/sphinxcontrib/httpdomain/__init__.py
@@ -209,6 +209,7 @@ def __init__(self, name, type):
     304: 'Not Modified',
     305: 'Use Proxy',
     307: 'Temporary Redirect',
+    308: 'Permanent Redirect',
     400: 'Bad Request',
     401: 'Unauthorized',
     402: 'Payment Required',     # unused
@@ -223,7 +224,7 @@ def __init__(self, name, type):
     411: 'Length Required',
     412: 'Precondition Failed',
     413: 'Request Entity Too Large',
-    414: 'Request URI Too Long',
+    414: 'URI Too Long',
     415: 'Unsupported Media Type',
     416: 'Requested Range Not Satisfiable',
     417: 'Expectation Failed',
@@ -231,6 +232,7 @@ def __init__(self, name, type):
     422: 'Unprocessable Entity',
     423: 'Locked',
     424: 'Failed Dependency',
+    425: 'Too Early',           # RFC 8470
     426: 'Upgrade Required',
     429: 'Too Many Requests',
     449: 'Retry With',           # proprietary MS extension