diff --git a/CHANGES.md b/CHANGES.md
index b1413c29a5..0e9c051d0f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -30,6 +30,7 @@ Core Grammars:
 Documentation:
 
 - alphabetized languages + upper-cased BASIC in SUPPORTED_LANGUAGES.md [Adam Lui][]
+- document the existing `pwsh` alias for PowerShell [helpimnotdrowning][]
 
 Themes:
 
@@ -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
+[helpimnotdrowning]: https://github.com/helpimnotdrowning
 
 
 ## Version 11.11.1
diff --git a/SUPPORTED_LANGUAGES.md b/SUPPORTED_LANGUAGES.md
index c0a9ae6e58..9976f874ac 100644
--- a/SUPPORTED_LANGUAGES.md
+++ b/SUPPORTED_LANGUAGES.md
@@ -185,7 +185,7 @@ The table below shows the full list of languages (and corresponding classes/alia
 | Pony                    | pony                   |         |
 | PostgreSQL & PL/pgSQL   | pgsql, postgres, postgresql |    |
 | PowerOn                 | poweron, po            | [highlightjs-poweron](https://github.com/libum-llc/highlightjs-poweron) |
-| PowerShell              | powershell, ps, ps1    |         |
+| PowerShell              | powershell, ps, ps1, pwsh |    |
 | Prisma                  | prisma                 | [highlightjs-prisma](https://github.com/witch-factory/highlightjs-prisma)        |
 | Processing              | processing             |         |
 | Prolog                  | prolog                 |         |