diff --git a/esphome/components/api/api_frame_helper.cpp b/esphome/components/api/api_frame_helper.cpp
index 094dd67e33..d9eadb2aaa 100644
--- a/esphome/components/api/api_frame_helper.cpp
+++ b/esphome/components/api/api_frame_helper.cpp
@@ -1,6 +1,7 @@
 #include "api_frame_helper.h"
 
 #include "esphome/core/log.h"
+#include "esphome/core/hal.h"
 #include "esphome/core/helpers.h"
 #include "proto.h"
 #include <cstring>
@@ -721,7 +722,12 @@ APIError APINoiseFrameHelper::shutdown(int how) {
 }
 extern "C" {
 // declare how noise generates random bytes (here with a good HWRNG based on the RF system)
-void noise_rand_bytes(void *output, size_t len) { esphome::random_bytes(reinterpret_cast<uint8_t *>(output), len); }
+void noise_rand_bytes(void *output, size_t len) {
+  if (!esphome::random_bytes(reinterpret_cast<uint8_t *>(output), len)) {
+    ESP_LOGE(TAG, "Failed to acquire random bytes, rebooting!");
+    arch_restart();
+  }
+}
 }
 #endif  // USE_API_NOISE
 
diff --git a/esphome/components/modbus_controller/switch/__init__.py b/esphome/components/modbus_controller/switch/__init__.py
index 9858d45617..0dfbd83cb8 100644
--- a/esphome/components/modbus_controller/switch/__init__.py
+++ b/esphome/components/modbus_controller/switch/__init__.py
@@ -18,6 +18,7 @@ from ..const import (
     CONF_FORCE_NEW_RANGE,
     CONF_MODBUS_CONTROLLER_ID,
     CONF_REGISTER_TYPE,
+    CONF_SKIP_UPDATES,
     CONF_USE_WRITE_MULTIPLE,
     CONF_WRITE_LAMBDA,
 )
@@ -53,6 +54,7 @@ async def to_code(config):
         config[CONF_ADDRESS],
         byte_offset,
         config[CONF_BITMASK],
+        config[CONF_SKIP_UPDATES],
         config[CONF_FORCE_NEW_RANGE],
     )
     await cg.register_component(var, config)
diff --git a/esphome/components/modbus_controller/switch/modbus_switch.h b/esphome/components/modbus_controller/switch/modbus_switch.h
index 5ac2af01a1..6732c01eef 100644
--- a/esphome/components/modbus_controller/switch/modbus_switch.h
+++ b/esphome/components/modbus_controller/switch/modbus_switch.h
@@ -10,14 +10,14 @@ namespace modbus_controller {
 class ModbusSwitch : public Component, public switch_::Switch, public SensorItem {
  public:
   ModbusSwitch(ModbusRegisterType register_type, uint16_t start_address, uint8_t offset, uint32_t bitmask,
-               bool force_new_range)
+               uint8_t skip_updates, bool force_new_range)
       : Component(), switch_::Switch() {
     this->register_type = register_type;
     this->start_address = start_address;
     this->offset = offset;
     this->bitmask = bitmask;
     this->sensor_value_type = SensorValueType::BIT;
-    this->skip_updates = 0;
+    this->skip_updates = skip_updates;
     this->register_count = 1;
     if (register_type == ModbusRegisterType::HOLDING || register_type == ModbusRegisterType::COIL) {
       this->start_address += offset;
diff --git a/esphome/const.py b/esphome/const.py
index 9005cc927a..a94902d946 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -1,6 +1,6 @@
 """Constants used by esphome."""
 
-__version__ = "2022.1.0b3"
+__version__ = "2022.1.0b4"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 
diff --git a/esphome/core/helpers.cpp b/esphome/core/helpers.cpp
index e15e3a8ea3..5f29abe579 100644
--- a/esphome/core/helpers.cpp
+++ b/esphome/core/helpers.cpp
@@ -287,13 +287,12 @@ uint32_t random_uint32() {
 #endif
 }
 float random_float() { return static_cast<float>(random_uint32()) / static_cast<float>(UINT32_MAX); }
-void random_bytes(uint8_t *data, size_t len) {
+bool random_bytes(uint8_t *data, size_t len) {
 #ifdef USE_ESP32
   esp_fill_random(data, len);
+  return true;
 #elif defined(USE_ESP8266)
-  if (os_get_random(data, len) != 0) {
-    ESP_LOGE(TAG, "Failed to generate random bytes!");
-  }
+  return os_get_random(data, len) == 0;
 #else
 #error "No random source available for this configuration."
 #endif
diff --git a/esphome/core/helpers.h b/esphome/core/helpers.h
index f071b4a814..c9a27a2fab 100644
--- a/esphome/core/helpers.h
+++ b/esphome/core/helpers.h
@@ -311,7 +311,7 @@ uint32_t random_uint32();
 /// Return a random float between 0 and 1.
 float random_float();
 /// Generate \p len number of random bytes.
-void random_bytes(uint8_t *data, size_t len);
+bool random_bytes(uint8_t *data, size_t len);
 
 ///@}
 
diff --git a/requirements.txt b/requirements.txt
index 05636da805..9add417bdf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ pyserial==3.5
 platformio==5.2.4  # When updating platformio, also update Dockerfile
 esptool==3.2
 click==8.0.3
-esphome-dashboard==20220113.2
+esphome-dashboard==20220116.0
 aioesphomeapi==10.6.0
 zeroconf==0.37.0