diff --git a/components/display/inkplate6.rst b/components/display/inkplate6.rst
index 0ef6d520d2..5d1b7741ab 100644
--- a/components/display/inkplate6.rst
+++ b/components/display/inkplate6.rst
@@ -180,7 +180,7 @@ Wi-Fi, API, and OTA configuration.
       - platform: adc
         id: battery_voltage
         update_interval: never
-        attenuation: 11db
+        attenuation: 12db
         pin: 35
       - platform: template
         name: "Inkplate Battery Voltage"
diff --git a/components/sensor/adc.rst b/components/sensor/adc.rst
index a95c690e16..d5fe6c2efa 100644
--- a/components/sensor/adc.rst
+++ b/components/sensor/adc.rst
@@ -63,7 +63,7 @@ ESP32 Attenuation
 -----------------
 
 On the ESP32 the voltage measured with the ADC caps out at ~1.1V by default as the sensing range (attenuation of the ADC) is set to ``0db`` by default.
-Measuring higher voltages requires setting ``attenuation`` to one of the following values: ``0db``, ``2.5db``, ``6db``, ``11db``.
+Measuring higher voltages requires setting ``attenuation`` to one of the following values: ``0db``, ``2.5db``, ``6db``, ``12db``.
 There's more information `at the manufacturer's website <https://docs.espressif.com/projects/esp-idf/en/v4.4.7/esp32/api-reference/peripherals/adc.html#_CPPv425adc1_config_channel_atten14adc1_channel_t11adc_atten_t>`__.
 
 To simplify this, we provide the setting ``attenuation: auto`` for an automatic/seamless transition among scales. `Our implementation