diff --git a/esphome/__main__.py b/esphome/__main__.py
index 9a79c0bde2..5e45b7f213 100644
--- a/esphome/__main__.py
+++ b/esphome/__main__.py
@@ -279,16 +279,16 @@ def upload_using_esptool(config, port, file, speed):
         cmd = [
             "esptool",
             "--before",
-            "default_reset",
+            "default-reset",
             "--after",
-            "hard_reset",
+            "hard-reset",
             "--baud",
             str(baud_rate),
             "--port",
             port,
             "--chip",
             mcu,
-            "write_flash",
+            "write-flash",
             "-z",
             "--flash-size",
             "detect",