diff --git a/esphomeflasher/const.py b/esphomeflasher/const.py
index 3ce3b20..09dff6b 100644
--- a/esphomeflasher/const.py
+++ b/esphomeflasher/const.py
@@ -4,7 +4,7 @@ __version__ = "1.1.0"
 
 ESP32_DEFAULT_OTA_DATA = 'https://raw.githubusercontent.com/espressif/arduino-esp32/1.0.0/tools/partitions/boot_app0.bin'
 ESP32_DEFAULT_BOOTLOADER_FORMAT = 'https://raw.githubusercontent.com/espressif/arduino-esp32/' \
-                                  '1.0.0/tools/sdk/bin/bootloader_$FLASH_MODE$_$FLASH_FREQ$.bin'
+                                  '1.0.4/tools/sdk/bin/bootloader_$FLASH_MODE$_$FLASH_FREQ$.bin'
 ESP32_DEFAULT_PARTITIONS = 'https://raw.githubusercontent.com/esphome/esphomeflasher/master/partitions.bin'
 
 # https://stackoverflow.com/a/3809435/8924614
diff --git a/setup.py b/setup.py
index d8a17a7..8e53d62 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@ DOWNLOAD_URL = '{}/archive/{}.zip'.format(GITHUB_URL, const.__version__)
 
 REQUIRES = [
     'wxpython>=4.0,<5.0',
-    'esptool==2.6',
+    'esptool==2.8',
     'requests>=2.0,<3',
 ]