diff --git a/src/idf_component.yml b/src/idf_component.yml
index 186adc3..b7f3fbb 100755
--- a/src/idf_component.yml
+++ b/src/idf_component.yml
@@ -1,5 +1,5 @@
 ## IDF Component Manager Manifest File
 dependencies:
-  espressif/esp_tinyusb: "^1.7.2"
+  espressif/esp_tinyusb: "^1.7.6"
   #espressif/tinyusb: "^0.15.0"
   zorxx/neopixel: "^1.0.4"
diff --git a/src/usb/usb_descriptors.c b/src/usb/usb_descriptors.c
index 650153c..74a68e3 100644
--- a/src/usb/usb_descriptors.c
+++ b/src/usb/usb_descriptors.c
@@ -107,7 +107,7 @@ uint8_t const desc_hid_report_kb[] = {
 #endif
 
 enum {
-    EPNUM_DUMMY = 1,
+    EPNUM_DUMMY = 0,
 #ifdef USB_ITF_CCID
     EPNUM_CCID,
 #if TUSB_SMARTCARD_CCID_EPS == 3