diff --git a/ftdetect/typescript.vim b/ftdetect/typescript.vim
index 7c10206..ba27b4c 100644
--- a/ftdetect/typescript.vim
+++ b/ftdetect/typescript.vim
@@ -2,3 +2,9 @@
 autocmd BufNewFile,BufRead *.ts  set filetype=typescript
 " use `setfiletype` to not override any other plugins like ianks/vim-tsx
 autocmd BufNewFile,BufRead *.tsx setfiletype typescript
+
+" https://devblogs.microsoft.com/typescript/announcing-typescript-4-7/#new-file-extensions
+autocmd BufNewFile,BufRead *.cts  set filetype=typescript
+autocmd BufNewFile,BufRead *.mts setfiletype typescript
+autocmd BufNewFile,BufRead *.ctsx  set filetype=typescript
+autocmd BufNewFile,BufRead *.mtsx setfiletype typescript