diff --git a/boards/tbeam-s3-core.json b/boards/tbeam-s3-core.json
index 4c82a2789d..8d2c3eed6a 100644
--- a/boards/tbeam-s3-core.json
+++ b/boards/tbeam-s3-core.json
@@ -7,6 +7,7 @@
     "extra_flags": [
       "-DBOARD_HAS_PSRAM",
       "-DLILYGO_TBEAM_S3_CORE",
+      "-DARDUINO_USB_CDC_ON_BOOT=1",
       "-DARDUINO_USB_MODE=1",
       "-DARDUINO_RUNNING_CORE=1",
       "-DARDUINO_EVENT_RUNNING_CORE=1"
diff --git a/variants/tbeam-s3-core/platformio.ini b/variants/tbeam-s3-core/platformio.ini
index 99d315a69f..926f15a397 100644
--- a/variants/tbeam-s3-core/platformio.ini
+++ b/variants/tbeam-s3-core/platformio.ini
@@ -3,6 +3,8 @@
 extends = esp32s3_base
 board = tbeam-s3-core
 
+platform_packages = framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#2.0.15
+
 lib_deps =
   ${esp32s3_base.lib_deps}
   lewisxhe/PCF8563_Library@1.0.1