diff --git a/TODO.md b/TODO.md
index e1783ce..b0e8171 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,5 @@
  - [x] Support HLS (HTTP Live Streaming)
- - [ ] Subtitles ([`textTracks`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/textTracks))
+ - [x] Subtitles ([`textTracks`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/textTracks))
  - [ ] Multi-Video Tracks ([`videoTracks`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/videoTracks))
  - [ ] Multi-Audio Tracks ([`audioTracks`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/audioTracks))
  - [ ] Playback Rate ([`playbackRate`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/playbackRate))