diff --git a/audioooo/platformio.ini b/audioooo/platformio.ini
index 2b8d88c..8cc0381 100644
--- a/audioooo/platformio.ini
+++ b/audioooo/platformio.ini
@@ -16,4 +16,5 @@ lib_deps =
   adafruit/Adafruit SSD1306@^2.4.5
   adafruit/Adafruit BusIO@^1.7.3
   arkhipenko/TaskScheduler@^3.3.0
+  adafruit/Adafruit GFX Library
 upload_speed = 921600 ; 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600