diff --git a/README.md b/README.md
index b292409e3191b3890b209c6cd4d76e59fd63683e..f9e6a6f2478ab12e91227bb89fffffbb0da51f4e 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Add symbols with names that make sense, try to follow and come up with a Fab nam
 - [x] Charge controllers
 - [x] Amplifiers
 - [x] LEDs
-- [ ] Photodetectors
+- [x] Photodetectors
 - [x] Speakers and mics
 - [x] Temperature sensors
 - [ ] Hall-Effect sensors