diff --git a/pkgs/development/python-modules/psycopg/default.nix b/pkgs/development/python-modules/psycopg/default.nix
index d66f21ca2679..f03932885a83 100644
--- a/pkgs/development/python-modules/psycopg/default.nix
+++ b/pkgs/development/python-modules/psycopg/default.nix
@@ -135,8 +135,8 @@ buildPythonPackage rec {
 
   # Introduce this file necessary for the docs build via environment var
   LIBPQ_DOCS_FILE = fetchurl {
-    url = "https://raw.githubusercontent.com/postgres/postgres/REL_14_STABLE/doc/src/sgml/libpq.sgml";
-    hash = "sha256-yn09fR9+7zQni8SvTG7BUmYRD7MK7u2arVAznWz2oAw=";
+    url = "https://raw.githubusercontent.com/postgres/postgres/496a1dc44bf1261053da9b3f7e430769754298b4/doc/src/sgml/libpq.sgml";
+    hash = "sha256-JwtCngkoi9pb0pqIdNgukY8GbG5pUDZvrGAHZqjFOw4";
   };
 
   inherit patches;