diff --git a/CHANGELOG.md b/CHANGELOG.md
index 38725e4141..3e40955afe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -103,6 +103,8 @@ These changes are available on the `master` branch, but have not yet been releas
   ([#2739](https://github.com/Pycord-Development/pycord/pull/2739))
 - Fixed missing `None` type hints in `Select.__init__`.
   ([#2746])(https://github.com/Pycord-Development/pycord/pull/2746)
+- Updated `valid_locales` to support `in` and `es-419`.
+  ([#2767])(https://github.com/Pycord-Development/pycord/pull/2767)
 
 ### Changed
 
diff --git a/discord/commands/core.py b/discord/commands/core.py
index 6dd1b0d636..bee43341fd 100644
--- a/discord/commands/core.py
+++ b/discord/commands/core.py
@@ -2042,11 +2042,13 @@ def command(**kwargs):
 
 docs = "https://discord.com/developers/docs"
 valid_locales = [
+    "id",
     "da",
     "de",
     "en-GB",
     "en-US",
     "es-ES",
+    "es-419",
     "fr",
     "hr",
     "it",