diff --git a/components/mqtt/weekend_test/mqtt_publish_test.py b/components/mqtt/weekend_test/mqtt_publish_test.py
index 9263f3ada..7b738a81a 100644
--- a/components/mqtt/weekend_test/mqtt_publish_test.py
+++ b/components/mqtt/weekend_test/mqtt_publish_test.py
@@ -80,13 +80,12 @@ def test_single_config(dut, transport, qos, repeat, published):
     try:
         if transport in ["ws", "wss"]:
             client = mqtt.Client(transport="websockets")
-            client.ws_set_options(path="/ws", headers=None)
         else:
             client = mqtt.Client()
         client.on_connect = on_connect
         client.on_message = on_message
         if transport in ["ssl", "wss"]:
-            client.tls_set(None, None, None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1, ciphers=None)
+            client.tls_set(None, None, None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1_2, ciphers=None)
             client.tls_insecure_set(True)
         print("Connecting...")
         client.connect(broker_host[transport], broker_port[transport], 60)
diff --git a/docs/en/api-reference/protocols/mqtt.rst b/docs/en/api-reference/protocols/mqtt.rst
index cb956755a..80d6270b9 100644
--- a/docs/en/api-reference/protocols/mqtt.rst
+++ b/docs/en/api-reference/protocols/mqtt.rst
@@ -32,30 +32,30 @@ URI
 -  Curently support ``mqtt``, ``mqtts``, ``ws``, ``wss`` schemes
 -  MQTT over TCP samples:
 
-   -  ``mqtt://iot.eclipse.org``: MQTT over TCP, default port 1883:
-   -  ``mqtt://iot.eclipse.org:1884`` MQTT over TCP, port 1884:
-   -  ``mqtt://username:password@iot.eclipse.org:1884`` MQTT over TCP,
+   -  ``mqtt://mqtt.eclipse.org``: MQTT over TCP, default port 1883:
+   -  ``mqtt://mqtt.eclipse.org:1884`` MQTT over TCP, port 1884:
+   -  ``mqtt://username:password@mqtt.eclipse.org:1884`` MQTT over TCP,
       port 1884, with username and password
 
 -  MQTT over SSL samples:
 
-   -  ``mqtts://iot.eclipse.org``: MQTT over SSL, port 8883
-   -  ``mqtts://iot.eclipse.org:8884``: MQTT over SSL, port 8884
+   -  ``mqtts://mqtt.eclipse.org``: MQTT over SSL, port 8883
+   -  ``mqtts://mqtt.eclipse.org:8884``: MQTT over SSL, port 8884
 
 -  MQTT over Websocket samples:
 
-   -  ``ws://iot.eclipse.org:80/ws``
+   -  ``ws://mqtt.eclipse.org:80/mqtt``
 
 -  MQTT over Websocket Secure samples:
 
-   -  ``wss://iot.eclipse.org:443/ws``
+   -  ``wss://mqtt.eclipse.org:443/mqtt``
 
 -  Minimal configurations:
 
 .. code:: c
 
     const esp_mqtt_client_config_t mqtt_cfg = {
-        .uri = "mqtt://iot.eclipse.org",
+        .uri = "mqtt://mqtt.eclipse.org",
         // .user_context = (void *)your_context
     };
     esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
@@ -71,25 +71,25 @@ URI
 .. code:: c
 
     const esp_mqtt_client_config_t mqtt_cfg = {
-        .uri = "mqtt://iot.eclipse.org:1234",
+        .uri = "mqtt://mqtt.eclipse.org:1234",
         .port = 4567,
     };
-    //MQTT client will connect to iot.eclipse.org using port 4567
+    //MQTT client will connect to mqtt.eclipse.org using port 4567
 
 SSL
 ^^^
 
--  Get certificate from server, example: ``iot.eclipse.org``
-   ``openssl s_client -showcerts -connect iot.eclipse.org:8883 </dev/null 2>/dev/null|openssl x509 -outform PEM >iot_eclipse_org.pem``
+-  Get certificate from server, example: ``mqtt.eclipse.org``
+   ``openssl s_client -showcerts -connect mqtt.eclipse.org:8883 </dev/null 2>/dev/null|openssl x509 -outform PEM >mqtt_eclipse_org.pem``
 -  Check the sample application: ``examples/mqtt_ssl``
 -  Configuration:
 
 .. code:: cpp
 
     const esp_mqtt_client_config_t mqtt_cfg = {
-        .uri = "mqtts://iot.eclipse.org:8883",
+        .uri = "mqtts://mqtt.eclipse.org:8883",
         .event_handle = mqtt_event_handler,
-        .cert_pem = (const char *)iot_eclipse_org_pem_start,
+        .cert_pem = (const char *)mqtt_eclipse_org_pem_start,
     };
 
 For more options on ``esp_mqtt_client_config_t``, please refer to API reference below
diff --git a/examples/protocols/mqtt/publish_test/CMakeLists.txt b/examples/protocols/mqtt/publish_test/CMakeLists.txt
index 2203d063f..4a46af3e5 100644
--- a/examples/protocols/mqtt/publish_test/CMakeLists.txt
+++ b/examples/protocols/mqtt/publish_test/CMakeLists.txt
@@ -10,4 +10,4 @@ include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 
 project(mqtt_publish)
 
-target_add_binary_data(mqtt_publish.elf "main/iot_eclipse_org.pem" TEXT)
+target_add_binary_data(mqtt_publish.elf "main/mqtt_eclipse_org.pem" TEXT)
diff --git a/examples/protocols/mqtt/publish_test/main/Kconfig.projbuild b/examples/protocols/mqtt/publish_test/main/Kconfig.projbuild
index 8360e573d..bf4197482 100644
--- a/examples/protocols/mqtt/publish_test/main/Kconfig.projbuild
+++ b/examples/protocols/mqtt/publish_test/main/Kconfig.projbuild
@@ -2,25 +2,25 @@ menu "Example Configuration"
 
     config EXAMPLE_BROKER_SSL_URI
         string "Broker SSL URL"
-        default "mqtts://iot.eclipse.org:8883"
+        default "mqtts://mqtt.eclipse.org:8883"
         help
             URL of an mqtt broker for ssl transport
 
     config EXAMPLE_BROKER_TCP_URI
         string "Broker TCP URL"
-        default "mqtt://iot.eclipse.org:1883"
+        default "mqtt://mqtt.eclipse.org:1883"
         help
             URL of an mqtt broker for tcp transport
 
     config EXAMPLE_BROKER_WS_URI
         string "Broker WS URL"
-        default "ws://iot.eclipse.org:80/ws"
+        default "ws://mqtt.eclipse.org:80/mqtt"
         help
             URL of an mqtt broker for ws transport
 
     config EXAMPLE_BROKER_WSS_URI
         string "Broker WSS URL"
-        default "wss://iot.eclipse.org:443/ws"
+        default "wss://mqtt.eclipse.org:443/mqtt"
         help
             URL of an mqtt broker for wss transport
 
diff --git a/examples/protocols/mqtt/publish_test/main/component.mk b/examples/protocols/mqtt/publish_test/main/component.mk
index 797c4a1f6..597752fb9 100644
--- a/examples/protocols/mqtt/publish_test/main/component.mk
+++ b/examples/protocols/mqtt/publish_test/main/component.mk
@@ -1 +1 @@
-COMPONENT_EMBED_TXTFILES := iot_eclipse_org.pem
+COMPONENT_EMBED_TXTFILES := mqtt_eclipse_org.pem
diff --git a/examples/protocols/mqtt/publish_test/main/iot_eclipse_org.pem b/examples/protocols/mqtt/publish_test/main/mqtt_eclipse_org.pem
similarity index 100%
rename from examples/protocols/mqtt/publish_test/main/iot_eclipse_org.pem
rename to examples/protocols/mqtt/publish_test/main/mqtt_eclipse_org.pem
diff --git a/examples/protocols/mqtt/publish_test/main/publish_test.c b/examples/protocols/mqtt/publish_test/main/publish_test.c
index 9183bbb8b..918f9a191 100644
--- a/examples/protocols/mqtt/publish_test/main/publish_test.c
+++ b/examples/protocols/mqtt/publish_test/main/publish_test.c
@@ -46,11 +46,11 @@ static int qos_test = 0;
 
 
 #if CONFIG_EXAMPLE_BROKER_CERTIFICATE_OVERRIDDEN == 1
-static const uint8_t iot_eclipse_org_pem_start[]  = "-----BEGIN CERTIFICATE-----\n" CONFIG_EXAMPLE_BROKER_CERTIFICATE_OVERRIDE "\n-----END CERTIFICATE-----";
+static const uint8_t mqtt_eclipse_org_pem_start[]  = "-----BEGIN CERTIFICATE-----\n" CONFIG_EXAMPLE_BROKER_CERTIFICATE_OVERRIDE "\n-----END CERTIFICATE-----";
 #else
-extern const uint8_t iot_eclipse_org_pem_start[]   asm("_binary_iot_eclipse_org_pem_start");
+extern const uint8_t mqtt_eclipse_org_pem_start[]   asm("_binary_mqtt_eclipse_org_pem_start");
 #endif
-extern const uint8_t iot_eclipse_org_pem_end[]   asm("_binary_iot_eclipse_org_pem_end");
+extern const uint8_t mqtt_eclipse_org_pem_end[]   asm("_binary_mqtt_eclipse_org_pem_end");
 
 static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
 {
@@ -127,7 +127,7 @@ static void mqtt_app_start(void)
     mqtt_event_group = xEventGroupCreate();
     const esp_mqtt_client_config_t mqtt_cfg = {
         .event_handle = mqtt_event_handler,
-        .cert_pem = (const char *)iot_eclipse_org_pem_start,
+        .cert_pem = (const char *)mqtt_eclipse_org_pem_start,
     };
 
     ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
diff --git a/examples/protocols/mqtt/ssl/CMakeLists.txt b/examples/protocols/mqtt/ssl/CMakeLists.txt
index a7b2c4420..2b78a842b 100644
--- a/examples/protocols/mqtt/ssl/CMakeLists.txt
+++ b/examples/protocols/mqtt/ssl/CMakeLists.txt
@@ -9,4 +9,4 @@ set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_exam
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(mqtt_ssl)
 
-target_add_binary_data(mqtt_ssl.elf "main/iot_eclipse_org.pem" TEXT)
+target_add_binary_data(mqtt_ssl.elf "main/mqtt_eclipse_org.pem" TEXT)
diff --git a/examples/protocols/mqtt/ssl/README.md b/examples/protocols/mqtt/ssl/README.md
index e2693729d..aa96a6841 100644
--- a/examples/protocols/mqtt/ssl/README.md
+++ b/examples/protocols/mqtt/ssl/README.md
@@ -2,7 +2,7 @@
 
 (See the README.md file in the upper level 'examples' directory for more information about examples.)
 
-This example connects to the broker iot.eclipse.org using ssl transport and as a demonstration subscribes/unsubscribes and send a message on certain topic.
+This example connects to the broker mqtt.eclipse.org using ssl transport and as a demonstration subscribes/unsubscribes and send a message on certain topic.
 (Please note that the public broker is maintained by the community so may not be always available, for details please see this [disclaimer](https://iot.eclipse.org/getting-started/#sandboxes))
 
 It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
@@ -19,13 +19,13 @@ This example can be executed on any ESP32 board, the only required interface is
 * Configure Wi-Fi or Ethernet under "Example Connection Configuration" menu. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
 * When using Make build system, set `Default serial port` under `Serial flasher config`.
 
-PEM certificate for this example could be extracted from an openssl `s_client` command connecting to iot.eclipse.org.
+PEM certificate for this example could be extracted from an openssl `s_client` command connecting to mqtt.eclipse.org.
 In case a host operating system has `openssl` and `sed` packages installed, one could execute the following command to download and save the root certificate to a file (Note for Windows users: Both Linux like environment or Windows native packages may be used).
 ```
-echo "" | openssl s_client -showcerts -connect iot.eclipse.org:8883 | sed -n "1,/Root/d; /BEGIN/,/END/p" | openssl x509 -outform PEM >iot_eclipse_org.pem
+echo "" | openssl s_client -showcerts -connect mqtt.eclipse.org:8883 | sed -n "1,/Root/d; /BEGIN/,/END/p" | openssl x509 -outform PEM >mqtt_eclipse_org.pem
 ```
 Please note that this is not a general command for downloading a root certificate for an arbitrary host;
-this command works with iot.eclipse.org as the site provides root certificate in the chain, which then could be extracted
+this command works with mqtt.eclipse.org as the site provides root certificate in the chain, which then could be extracted
 with text operation.
 
 ### Build and Flash
diff --git a/examples/protocols/mqtt/ssl/main/Kconfig.projbuild b/examples/protocols/mqtt/ssl/main/Kconfig.projbuild
index e31873366..3c44294b0 100644
--- a/examples/protocols/mqtt/ssl/main/Kconfig.projbuild
+++ b/examples/protocols/mqtt/ssl/main/Kconfig.projbuild
@@ -2,7 +2,7 @@ menu "Example Configuration"
 
     config BROKER_URI
         string "Broker URL"
-        default "mqtts://iot.eclipse.org:8883"
+        default "mqtts://mqtt.eclipse.org:8883"
         help
             URL of an mqtt broker which this example connects to.
 
diff --git a/examples/protocols/mqtt/ssl/main/app_main.c b/examples/protocols/mqtt/ssl/main/app_main.c
index fd0a49d7b..cf0df5836 100644
--- a/examples/protocols/mqtt/ssl/main/app_main.c
+++ b/examples/protocols/mqtt/ssl/main/app_main.c
@@ -35,11 +35,11 @@ static const char *TAG = "MQTTS_EXAMPLE";
 
 
 #if CONFIG_BROKER_CERTIFICATE_OVERRIDDEN == 1
-static const uint8_t iot_eclipse_org_pem_start[]  = "-----BEGIN CERTIFICATE-----\n" CONFIG_BROKER_CERTIFICATE_OVERRIDE "\n-----END CERTIFICATE-----";
+static const uint8_t mqtt_eclipse_org_pem_start[]  = "-----BEGIN CERTIFICATE-----\n" CONFIG_BROKER_CERTIFICATE_OVERRIDE "\n-----END CERTIFICATE-----";
 #else
-extern const uint8_t iot_eclipse_org_pem_start[]   asm("_binary_iot_eclipse_org_pem_start");
+extern const uint8_t mqtt_eclipse_org_pem_start[]   asm("_binary_mqtt_eclipse_org_pem_start");
 #endif
-extern const uint8_t iot_eclipse_org_pem_end[]   asm("_binary_iot_eclipse_org_pem_end");
+extern const uint8_t mqtt_eclipse_org_pem_end[]   asm("_binary_mqtt_eclipse_org_pem_end");
 
 static esp_err_t mqtt_event_handler_cb(esp_mqtt_event_handle_t event)
 {
@@ -101,7 +101,7 @@ static void mqtt_app_start(void)
 {
     const esp_mqtt_client_config_t mqtt_cfg = {
         .uri = CONFIG_BROKER_URI,
-        .cert_pem = (const char *)iot_eclipse_org_pem_start,
+        .cert_pem = (const char *)mqtt_eclipse_org_pem_start,
     };
 
     ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
diff --git a/examples/protocols/mqtt/ssl/main/component.mk b/examples/protocols/mqtt/ssl/main/component.mk
index 797c4a1f6..597752fb9 100644
--- a/examples/protocols/mqtt/ssl/main/component.mk
+++ b/examples/protocols/mqtt/ssl/main/component.mk
@@ -1 +1 @@
-COMPONENT_EMBED_TXTFILES := iot_eclipse_org.pem
+COMPONENT_EMBED_TXTFILES := mqtt_eclipse_org.pem
diff --git a/examples/protocols/mqtt/ssl/main/iot_eclipse_org.pem b/examples/protocols/mqtt/ssl/main/mqtt_eclipse_org.pem
similarity index 100%
rename from examples/protocols/mqtt/ssl/main/iot_eclipse_org.pem
rename to examples/protocols/mqtt/ssl/main/mqtt_eclipse_org.pem
diff --git a/examples/protocols/mqtt/ssl/mqtt_ssl_example_test.py b/examples/protocols/mqtt/ssl/mqtt_ssl_example_test.py
index 7e6648253..ef9d1a9d6 100644
--- a/examples/protocols/mqtt/ssl/mqtt_ssl_example_test.py
+++ b/examples/protocols/mqtt/ssl/mqtt_ssl_example_test.py
@@ -87,7 +87,7 @@ def test_examples_protocol_mqtt_ssl(env, extra_data):
         client.on_message = on_message
         client.tls_set(None,
                        None,
-                       None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1, ciphers=None)
+                       None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1_2, ciphers=None)
         client.tls_insecure_set(True)
         print("Connecting...")
         client.connect(broker_url, broker_port, 60)
diff --git a/examples/protocols/mqtt/tcp/main/Kconfig.projbuild b/examples/protocols/mqtt/tcp/main/Kconfig.projbuild
index fbd48103b..fc6e8a184 100644
--- a/examples/protocols/mqtt/tcp/main/Kconfig.projbuild
+++ b/examples/protocols/mqtt/tcp/main/Kconfig.projbuild
@@ -2,7 +2,7 @@ menu "Example Configuration"
 
     config BROKER_URL
         string "Broker URL"
-        default "mqtt://iot.eclipse.org"
+        default "mqtt://mqtt.eclipse.org"
         help
             URL of the broker to connect to
 
diff --git a/examples/protocols/mqtt/ws/README.md b/examples/protocols/mqtt/ws/README.md
index c0526b073..3b2a05a97 100644
--- a/examples/protocols/mqtt/ws/README.md
+++ b/examples/protocols/mqtt/ws/README.md
@@ -2,7 +2,7 @@
 
 (See the README.md file in the upper level 'examples' directory for more information about examples.)
 
-This example connects to the broker iot.eclipse.org over web sockets as a demonstration subscribes/unsubscribes and send a message on certain topic.
+This example connects to the broker mqtt.eclipse.org over web sockets as a demonstration subscribes/unsubscribes and send a message on certain topic.
 (Please note that the public broker is maintained by the community so may not be always available, for details please see this [disclaimer](https://iot.eclipse.org/getting-started/#sandboxes))
 
 It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
diff --git a/examples/protocols/mqtt/ws/main/Kconfig.projbuild b/examples/protocols/mqtt/ws/main/Kconfig.projbuild
index 46f3ad565..c298f5d7c 100644
--- a/examples/protocols/mqtt/ws/main/Kconfig.projbuild
+++ b/examples/protocols/mqtt/ws/main/Kconfig.projbuild
@@ -2,7 +2,7 @@ menu "Example Configuration"
 
     config BROKER_URI
         string "Broker URL"
-        default "ws://iot.eclipse.org:80/ws"
+        default "ws://mqtt.eclipse.org:80/mqtt"
         help
             URL of an mqtt broker which this example connects to.
 
diff --git a/examples/protocols/mqtt/ws/mqtt_ws_example_test.py b/examples/protocols/mqtt/ws/mqtt_ws_example_test.py
index 0578876e2..58b8d5e37 100644
--- a/examples/protocols/mqtt/ws/mqtt_ws_example_test.py
+++ b/examples/protocols/mqtt/ws/mqtt_ws_example_test.py
@@ -82,7 +82,6 @@ def test_examples_protocol_mqtt_ws(env, extra_data):
         client = mqtt.Client(transport="websockets")
         client.on_connect = on_connect
         client.on_message = on_message
-        client.ws_set_options(path="/ws", headers=None)
         print("Connecting...")
         client.connect(broker_url, broker_port, 60)
     except Exception:
diff --git a/examples/protocols/mqtt/wss/CMakeLists.txt b/examples/protocols/mqtt/wss/CMakeLists.txt
index 3e2d5fc23..2350bd829 100644
--- a/examples/protocols/mqtt/wss/CMakeLists.txt
+++ b/examples/protocols/mqtt/wss/CMakeLists.txt
@@ -9,4 +9,4 @@ set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_exam
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(mqtt_websocket_secure)
 
-target_add_binary_data(mqtt_websocket_secure.elf "main/iot_eclipse_org.pem" TEXT)
+target_add_binary_data(mqtt_websocket_secure.elf "main/mqtt_eclipse_org.pem" TEXT)
diff --git a/examples/protocols/mqtt/wss/README.md b/examples/protocols/mqtt/wss/README.md
index 9851d5433..c07477fe1 100644
--- a/examples/protocols/mqtt/wss/README.md
+++ b/examples/protocols/mqtt/wss/README.md
@@ -1,7 +1,7 @@
 # ESP-MQTT MQTT over WSS Sample application
 (See the README.md file in the upper level 'examples' directory for more information about examples.)
 
-This example connects to the broker iot.eclipse.org over secure websockets and as a demonstration subscribes/unsubscribes and send a message on certain topic.
+This example connects to the broker mqtt.eclipse.org over secure websockets and as a demonstration subscribes/unsubscribes and send a message on certain topic.
 (Please note that the public broker is maintained by the community so may not be always available, for details please see this [disclaimer](https://iot.eclipse.org/getting-started/#sandboxes))
 
 It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
@@ -18,15 +18,15 @@ This example can be executed on any ESP32 board, the only required interface is
 * Configure Wi-Fi or Ethernet under "Example Connection Configuration" menu. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
 * When using Make build system, set `Default serial port` under `Serial flasher config`.
 
-Note how to create a PEM certificate for iot.eclipse.org:
+Note how to create a PEM certificate for mqtt.eclipse.org:
 
-PEM certificate for this example could be extracted from an openssl `s_client` command connecting to iot.eclipse.org.
+PEM certificate for this example could be extracted from an openssl `s_client` command connecting to mqtt.eclipse.org.
 In case a host operating system has `openssl` and `sed` packages installed, one could execute the following command to download and save the root certificate to a file (Note for Windows users: Both Linux like environment or Windows native packages may be used).
 ```
-echo "" | openssl s_client -showcerts -connect iot.eclipse.org:443 | sed -n "1,/Root/d; /BEGIN/,/END/p" | openssl x509 -outform PEM >iot_eclipse_org.pem
+echo "" | openssl s_client -showcerts -connect mqtt.eclipse.org:443 | sed -n "1,/Root/d; /BEGIN/,/END/p" | openssl x509 -outform PEM >mqtt_eclipse_org.pem
 ```
 Please note that this is not a general command for downloading a root certificate for an arbitrary host;
-this command works with iot.eclipse.org as the site provides root certificate in the chain, which then could be extracted
+this command works with mqtt.eclipse.org as the site provides root certificate in the chain, which then could be extracted
 with text operation.
 
 ### Build and Flash
diff --git a/examples/protocols/mqtt/wss/main/Kconfig.projbuild b/examples/protocols/mqtt/wss/main/Kconfig.projbuild
index d3f7bf51c..5e43c8949 100644
--- a/examples/protocols/mqtt/wss/main/Kconfig.projbuild
+++ b/examples/protocols/mqtt/wss/main/Kconfig.projbuild
@@ -2,7 +2,7 @@ menu "Example Configuration"
 
     config BROKER_URI
         string "Broker URL"
-        default "wss://iot.eclipse.org:443/ws"
+        default "wss://mqtt.eclipse.org:443/mqtt"
         help
             URL of an mqtt broker which this example connects to.
 
diff --git a/examples/protocols/mqtt/wss/main/app_main.c b/examples/protocols/mqtt/wss/main/app_main.c
index a9de24455..529e96060 100644
--- a/examples/protocols/mqtt/wss/main/app_main.c
+++ b/examples/protocols/mqtt/wss/main/app_main.c
@@ -33,11 +33,11 @@ static const char *TAG = "MQTTWSS_EXAMPLE";
 
 
 #if CONFIG_BROKER_CERTIFICATE_OVERRIDDEN == 1
-static const uint8_t iot_eclipse_org_pem_start[]  = "-----BEGIN CERTIFICATE-----\n" CONFIG_BROKER_CERTIFICATE_OVERRIDE "\n-----END CERTIFICATE-----";
+static const uint8_t mqtt_eclipse_org_pem_start[]  = "-----BEGIN CERTIFICATE-----\n" CONFIG_BROKER_CERTIFICATE_OVERRIDE "\n-----END CERTIFICATE-----";
 #else
-extern const uint8_t iot_eclipse_org_pem_start[]   asm("_binary_iot_eclipse_org_pem_start");
+extern const uint8_t mqtt_eclipse_org_pem_start[]   asm("_binary_mqtt_eclipse_org_pem_start");
 #endif
-extern const uint8_t iot_eclipse_org_pem_end[]   asm("_binary_iot_eclipse_org_pem_end");
+extern const uint8_t mqtt_eclipse_org_pem_end[]   asm("_binary_mqtt_eclipse_org_pem_end");
 
 static esp_err_t mqtt_event_handler_cb(esp_mqtt_event_handle_t event)
 {
@@ -95,7 +95,7 @@ static void mqtt_app_start(void)
 {
     const esp_mqtt_client_config_t mqtt_cfg = {
         .uri = CONFIG_BROKER_URI,
-        .cert_pem = (const char *)iot_eclipse_org_pem_start,
+        .cert_pem = (const char *)mqtt_eclipse_org_pem_start,
     };
 
     ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
diff --git a/examples/protocols/mqtt/wss/main/component.mk b/examples/protocols/mqtt/wss/main/component.mk
index 797c4a1f6..597752fb9 100644
--- a/examples/protocols/mqtt/wss/main/component.mk
+++ b/examples/protocols/mqtt/wss/main/component.mk
@@ -1 +1 @@
-COMPONENT_EMBED_TXTFILES := iot_eclipse_org.pem
+COMPONENT_EMBED_TXTFILES := mqtt_eclipse_org.pem
diff --git a/examples/protocols/mqtt/wss/main/iot_eclipse_org.pem b/examples/protocols/mqtt/wss/main/mqtt_eclipse_org.pem
similarity index 100%
rename from examples/protocols/mqtt/wss/main/iot_eclipse_org.pem
rename to examples/protocols/mqtt/wss/main/mqtt_eclipse_org.pem
diff --git a/examples/protocols/mqtt/wss/mqtt_wss_example_test.py b/examples/protocols/mqtt/wss/mqtt_wss_example_test.py
index 58ce56036..15ca2834a 100644
--- a/examples/protocols/mqtt/wss/mqtt_wss_example_test.py
+++ b/examples/protocols/mqtt/wss/mqtt_wss_example_test.py
@@ -85,7 +85,7 @@ def test_examples_protocol_mqtt_wss(env, extra_data):
         client.on_message = on_message
         client.tls_set(None,
                        None,
-                       None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1, ciphers=None)
+                       None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1_2, ciphers=None)
         print("Connecting...")
         client.connect(broker_url, broker_port, 60)
     except Exception:
diff --git a/examples/protocols/pppos_client/main/pppos_client_main.c b/examples/protocols/pppos_client/main/pppos_client_main.c
index 4f376ea68..c3a18a6cb 100644
--- a/examples/protocols/pppos_client/main/pppos_client_main.c
+++ b/examples/protocols/pppos_client/main/pppos_client_main.c
@@ -16,7 +16,7 @@
 #include "sim800.h"
 #include "bg96.h"
 
-#define BROKER_URL "mqtt://iot.eclipse.org"
+#define BROKER_URL "mqtt://mqtt.eclipse.org"
 
 static const char *TAG = "pppos_example";
 static EventGroupHandle_t event_group = NULL;