diff --git a/src/Arduino_ESP32_OTA.cpp b/src/Arduino_ESP32_OTA.cpp
index 39dd327..799e4f3 100644
--- a/src/Arduino_ESP32_OTA.cpp
+++ b/src/Arduino_ESP32_OTA.cpp
@@ -34,6 +34,7 @@ Arduino_ESP32_OTA::Arduino_ESP32_OTA()
 , _http_client(nullptr)
 ,_ca_cert{amazon_root_ca}
 ,_ca_cert_bundle{nullptr}
+,_ca_cert_budle_size(0)
 ,_magic(0)
 {
 
@@ -76,12 +77,22 @@ void Arduino_ESP32_OTA::setCACert (const char *rootCA)
   }
 }
 
+#if (ESP_ARDUINO_VERSION < ESP_ARDUINO_VERSION_VAL(3, 0, 4))
 void Arduino_ESP32_OTA::setCACertBundle (const uint8_t * bundle)
 {
   if(bundle != nullptr) {
     _ca_cert_bundle = bundle;
   }
 }
+#else
+void Arduino_ESP32_OTA::setCACertBundle (const uint8_t * bundle, size_t size)
+{
+  if(bundle != nullptr && size != 0) {
+    _ca_cert_bundle = bundle;
+    _ca_cert_budle_size = size;
+  }
+}
+#endif
 
 void Arduino_ESP32_OTA::setMagic(uint32_t magic)
 {
@@ -115,7 +126,11 @@ int Arduino_ESP32_OTA::startDownload(const char * ota_url)
     if (_ca_cert != nullptr) {
       static_cast<WiFiClientSecure*>(_client)->setCACert(_ca_cert);
     } else if (_ca_cert_bundle != nullptr) {
+#if (ESP_ARDUINO_VERSION < ESP_ARDUINO_VERSION_VAL(3, 0, 4))
       static_cast<WiFiClientSecure*>(_client)->setCACertBundle(_ca_cert_bundle);
+#else
+      static_cast<WiFiClientSecure*>(_client)->setCACertBundle(_ca_cert_bundle, _ca_cert_budle_size);
+#endif
     } else {
       DEBUG_VERBOSE("%s: CA not configured for download client");
     }
diff --git a/src/Arduino_ESP32_OTA.h b/src/Arduino_ESP32_OTA.h
index f82c6e1..6202ef2 100644
--- a/src/Arduino_ESP32_OTA.h
+++ b/src/Arduino_ESP32_OTA.h
@@ -24,6 +24,7 @@
 
 #include <Arduino_DebugUtils.h>
 #include <WiFiClientSecure.h>
+#include <WiFi.h>
 #include "decompress/utility.h"
 #include "decompress/lzss.h"
 #include <ArduinoHttpClient.h>
@@ -87,7 +88,11 @@ class Arduino_ESP32_OTA
   Arduino_ESP32_OTA::Error begin(uint32_t magic = ARDUINO_ESP32_OTA_MAGIC);
   void setMagic(uint32_t magic);
   void setCACert(const char *rootCA);
+#if (ESP_ARDUINO_VERSION < ESP_ARDUINO_VERSION_VAL(3, 0, 4))
   void setCACertBundle(const uint8_t * bundle);
+#else
+  void setCACertBundle (const uint8_t * bundle, size_t size);
+#endif
 
   // blocking version for the download
   // returns the size of the downloaded binary
@@ -151,6 +156,7 @@ class Arduino_ESP32_OTA
   HttpClient* _http_client;
   const char * _ca_cert;
   const uint8_t * _ca_cert_bundle;
+  size_t _ca_cert_budle_size;
   uint32_t _magic;
 
   void clean();