diff --git a/pytest-embedded-arduino/pytest_embedded_arduino/serial.py b/pytest-embedded-arduino/pytest_embedded_arduino/serial.py
index 22dee44b..0402f9de 100644
--- a/pytest-embedded-arduino/pytest_embedded_arduino/serial.py
+++ b/pytest-embedded-arduino/pytest_embedded_arduino/serial.py
@@ -55,7 +55,7 @@ def flash(self) -> None:
 
         try:
             esptool.main(
-                ['--chip', self.app.target, 'write_flash', *flash_files, *flash_settings],
+                ['--chip', self.app.target, 'write-flash', *flash_files, *flash_settings],
                 esp=self.esp,
             )
         except Exception:
diff --git a/pytest-embedded-idf/pytest_embedded_idf/serial.py b/pytest-embedded-idf/pytest_embedded_idf/serial.py
index c646c9a1..22ba3a63 100644
--- a/pytest-embedded-idf/pytest_embedded_idf/serial.py
+++ b/pytest-embedded-idf/pytest_embedded_idf/serial.py
@@ -166,12 +166,12 @@ def flash(self, app: IdfApp | None = None) -> None:
 
         if '--baud' not in _args:
             _args.extend(['--baud', os.getenv('ESPBAUD', '921600')])
-        _args.append('write_flash')
+        _args.append('write-flash')
 
         if self.erase_nvs:
             esptool.main(
                 [
-                    'erase_region',
+                    'erase-region',
                     str(app.partition_table['nvs']['offset']),
                     str(app.partition_table['nvs']['size']),
                 ],
@@ -234,10 +234,10 @@ def dump_flash(
             raise ValueError('You must specify "partition" or ("address" and "size") to dump flash')
 
         if output:
-            esptool.main(['read_flash', str(_addr), str(_size), str(output)], esp=self.esp)
+            esptool.main(['read-flash', str(_addr), str(_size), str(output)], esp=self.esp)
         else:
             with tempfile.NamedTemporaryFile() as fp:
-                esptool.main(['read_flash', str(_addr), str(_size), fp.name], esp=self.esp)
+                esptool.main(['read-flash', str(_addr), str(_size), fp.name], esp=self.esp)
                 content = fp.read()
             return content
 
@@ -256,7 +256,7 @@ def erase_partition(self, partition_name: str) -> None:
             address = self.app.partition_table[partition_name]['offset']
             size = self.app.partition_table[partition_name]['size']
             logging.info(f'Erasing the partition "{partition_name}" of size {size} at {address}')
-            esptool.main(['erase_region', str(address), str(size), *self._force_flag()], esp=self.esp)
+            esptool.main(['erase-region', str(address), str(size), *self._force_flag()], esp=self.esp)
         else:
             raise ValueError(f'partition name "{partition_name}" not found in app partition table')
 
@@ -279,7 +279,7 @@ def read_flash_elf_sha256(self) -> bytes:
 
         with tempfile.NamedTemporaryFile() as fp:
             esptool.main(
-                ['read_flash', str(bin_offset + self.DEFAULT_SHA256_OFFSET), str(32), fp.name],
+                ['read-flash', str(bin_offset + self.DEFAULT_SHA256_OFFSET), str(32), fp.name],
                 esp=self.esp,
             )
             content = fp.read()
diff --git a/pytest-embedded-nuttx/pytest_embedded_nuttx/serial.py b/pytest-embedded-nuttx/pytest_embedded_nuttx/serial.py
index e2a6b30f..5a6d50b0 100644
--- a/pytest-embedded-nuttx/pytest_embedded_nuttx/serial.py
+++ b/pytest-embedded-nuttx/pytest_embedded_nuttx/serial.py
@@ -93,11 +93,11 @@ def flash(self) -> None:
             flash_files.extend((str(self.binary_offsets[self.target]), self.app.app_file.as_posix()))
 
         flash_settings = [
-            '--flash_mode',
+            '--flash-mode',
             self.flash_mode,
-            '--flash_size',
+            '--flash-size',
             self.flash_size,
-            '--flash_freq',
+            '--flash-freq',
             self.flash_freq,
         ]
 
@@ -109,7 +109,7 @@ def flash(self) -> None:
                 self.port,
                 '--baud',
                 str(self.esptool_baud),
-                'write_flash',
+                'write-flash',
                 *flash_files,
                 *flash_settings,
             ],
diff --git a/pytest-embedded-qemu/pytest_embedded_qemu/app.py b/pytest-embedded-qemu/pytest_embedded_qemu/app.py
index b9831769..33cafe78 100644
--- a/pytest-embedded-qemu/pytest_embedded_qemu/app.py
+++ b/pytest-embedded-qemu/pytest_embedded_qemu/app.py
@@ -88,7 +88,7 @@ def make_bin(self) -> None:
                 'esptool.py',
                 '--chip',
                 self.app.target,
-                'merge_bin',
+                'merge-bin',
                 '-o',
                 self.image_path,
                 '--fill-flash-size',
diff --git a/pytest-embedded-serial-esp/pytest_embedded_serial_esp/serial.py b/pytest-embedded-serial-esp/pytest_embedded_serial_esp/serial.py
index 01ad6cfc..66a9520b 100644
--- a/pytest-embedded-serial-esp/pytest_embedded_serial_esp/serial.py
+++ b/pytest-embedded-serial-esp/pytest_embedded_serial_esp/serial.py
@@ -125,7 +125,7 @@ def _post_init(self):
             self._meta.set_port_target_cache(self.port, self.target)
 
         if self.erase_all:
-            esptool.main(['erase_flash'], esp=self.esp)
+            esptool.main(['erase-flash'], esp=self.esp)
 
         super()._post_init()
 
@@ -163,7 +163,7 @@ def hard_reset(self):
     def erase_flash(self, force: bool = False) -> None:
         """Erase the complete flash"""
         logging.info('Erasing the flash')
-        options = ['erase_flash']
+        options = ['erase-flash']
 
         if force or self.esp_flash_force:
             options.append('--force')