diff --git a/CHANGES.md b/CHANGES.md
index b1413c29a5..810646acc5 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -14,6 +14,7 @@ New Grammars:
 - added 3rd party L4 grammar to SUPPORTED_LANGUAGES [Thomas Gorissen][]
 - added 3rd party Bicep grammar to SUPPORTED_LANGUAGES [Anthony Martin][]
 - added 3rd party Abc Notation grammar to SUPPORTED_LANGUAGES [NriotHrreion][]
+- added 3rd party Jaiva grammar to SUPPORTED_LANGUAGES [Lehlogonolo Poole][]
 
 Core Grammars:
 
@@ -55,6 +56,7 @@ CONTRIBUTORS
 [te-ing]: https://github.com/te-ing
 [Anthony Martin]: https://github.com/anthony-c-martin
 [NriotHrreion]: https://github.com/NriotHrreion
+[Lehlogonolo Poole]: https://github.com/yetnt
 
 
 ## Version 11.11.1
diff --git a/SUPPORTED_LANGUAGES.md b/SUPPORTED_LANGUAGES.md
index c0a9ae6e58..0c5f79f831 100644
--- a/SUPPORTED_LANGUAGES.md
+++ b/SUPPORTED_LANGUAGES.md
@@ -115,6 +115,7 @@ The table below shows the full list of languages (and corresponding classes/alia
 | Ini, TOML               | ini, toml              |         |
 | Iptables                | iptables               | [highlightjs-iptables](https://github.com/highlightjs/highlightjs-iptables) |
 | IRPF90                  | irpf90                 |         |
+| Jaiva                   | jaiva, jiv, jva        | [highlightjs-jaiva](https://github.com/yetnt/highlightjs-jaiva) |
 | Java                    | java, jsp              |         |
 | JavaScript              | javascript, js, jsx    |         |
 | Jolie                   | jolie, iol, ol         | [highlightjs-jolie](https://github.com/xiroV/highlightjs-jolie) |