diff --git a/boards/esp32-cam.json b/boards/esp32-cam.json
index 20113163e..9baa95c17 100644
--- a/boards/esp32-cam.json
+++ b/boards/esp32-cam.json
@@ -7,7 +7,7 @@
     "extra_flags": "-DARDUINO_ESP32_DEV -DBOARD_HAS_PSRAM -DHAS_PSRAM_FIX -mfix-esp32-psram-cache-issue -mfix-esp32-psram-cache-strategy=memw -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_4M",
     "f_cpu": "240000000L",
     "f_flash": "80000000L",
-    "flash_mode": "dout",
+    "flash_mode": "dio",
     "mcu": "esp32",
     "variant": "esp32",
     "partitions": "partitions/esp32_partition_app2880k_fs320k.csv"
diff --git a/boards/esp32-odroid.json b/boards/esp32-odroid.json
index 6d155670e..f7804af4e 100644
--- a/boards/esp32-odroid.json
+++ b/boards/esp32-odroid.json
@@ -7,7 +7,7 @@
     "extra_flags": "-DARDUINO_ODROID_ESP32 -DBOARD_HAS_PSRAM -DHAS_PSRAM_FIX -mfix-esp32-psram-cache-issue -mfix-esp32-psram-cache-strategy=memw -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_16M",
     "f_cpu": "240000000L",
     "f_flash": "80000000L",
-    "flash_mode": "dout",
+    "flash_mode": "dio",
     "mcu": "esp32",
     "variant": "odroid_esp32",
     "partitions": "partitions/esp32_partition_app2944k_fs10M.csv"
diff --git a/boards/esp32_16M.json b/boards/esp32_16M.json
index df52ebac4..c0956a642 100644
--- a/boards/esp32_16M.json
+++ b/boards/esp32_16M.json
@@ -7,7 +7,7 @@
     "extra_flags": "-DARDUINO_ESP32_DEV -DBOARD_HAS_PSRAM -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_16M",
     "f_cpu": "80000000L",
     "f_flash": "40000000L",
-    "flash_mode": "dout",
+    "flash_mode": "dio",
     "mcu": "esp32",
     "variant": "esp32",
     "partitions": "partitions/esp32_partition_app2944k_fs10M.csv"
diff --git a/boards/esp32_4M.json b/boards/esp32_4M.json
index c4875e1bd..d8e39873f 100644
--- a/boards/esp32_4M.json
+++ b/boards/esp32_4M.json
@@ -7,7 +7,7 @@
       "extra_flags": "-DARDUINO_ESP32_DEV -DBOARD_HAS_PSRAM -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_4M",
       "f_cpu": "80000000L",
       "f_flash": "40000000L",
-      "flash_mode": "dout",
+      "flash_mode": "dio",
       "mcu": "esp32",
       "variant": "esp32",
       "partitions": "partitions/esp32_partition_app2880k_fs320k.csv"
diff --git a/boards/esp32_4M_FS.json b/boards/esp32_4M_FS.json
index bc5447ad1..c2c7fb2ef 100644
--- a/boards/esp32_4M_FS.json
+++ b/boards/esp32_4M_FS.json
@@ -7,7 +7,7 @@
       "extra_flags": "-DARDUINO_ESP32_DEV -DBOARD_HAS_PSRAM -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_4M",
       "f_cpu": "80000000L",
       "f_flash": "40000000L",
-      "flash_mode": "dout",
+      "flash_mode": "dio",
       "mcu": "esp32",
       "variant": "esp32",
       "partitions": "partitions/esp32_partition_app1856k_fs1344k.csv"
diff --git a/boards/esp32_4M_Legacy.json b/boards/esp32_4M_Legacy.json
index 2af2b4add..fccad9d15 100644
--- a/boards/esp32_4M_Legacy.json
+++ b/boards/esp32_4M_Legacy.json
@@ -7,7 +7,7 @@
       "extra_flags": "-DARDUINO_ESP32_DEV -DBOARD_HAS_PSRAM -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_4M",
       "f_cpu": "80000000L",
       "f_flash": "40000000L",
-      "flash_mode": "dout",
+      "flash_mode": "dio",
       "mcu": "esp32",
       "variant": "esp32",
       "partitions": "partitions/esp32_partition_app1856k_fs320k.csv"
diff --git a/boards/esp32_8M.json b/boards/esp32_8M.json
index 5a7842f75..e7a351a4d 100644
--- a/boards/esp32_8M.json
+++ b/boards/esp32_8M.json
@@ -7,7 +7,7 @@
     "extra_flags": "-DARDUINO_ESP32_DEV -DBOARD_HAS_PSRAM -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_8M",
     "f_cpu": "80000000L",
     "f_flash": "40000000L",
-    "flash_mode": "dout",
+    "flash_mode": "dio",
     "mcu": "esp32",
     "variant": "esp32",
     "partitions": "partitions/esp32_partition_app2944k_fs2M.csv"
diff --git a/boards/esp32_solo1_4M.json b/boards/esp32_solo1_4M.json
index 6a7d9ed44..ebc5affe9 100644
--- a/boards/esp32_solo1_4M.json
+++ b/boards/esp32_solo1_4M.json
@@ -7,7 +7,7 @@
     "extra_flags": "-DARDUINO_ESP32_DEV -DARDUINO_USB_CDC_ON_BOOT=0 -DESP32_4M -DCORE32SOLO1",
     "f_cpu": "80000000L",
     "f_flash": "40000000L",
-    "flash_mode": "dout",
+    "flash_mode": "dio",
     "mcu": "esp32",
     "variant": "esp32",
     "partitions": "partitions/esp32_partition_app2880k_fs320k.csv"