diff --git a/demos/mqtt/mqtt_demo_mutual_auth/mqtt_demo_mutual_auth.c b/demos/mqtt/mqtt_demo_mutual_auth/mqtt_demo_mutual_auth.c
index e64f5ed2eb..d7a6ea64be 100644
--- a/demos/mqtt/mqtt_demo_mutual_auth/mqtt_demo_mutual_auth.c
+++ b/demos/mqtt/mqtt_demo_mutual_auth/mqtt_demo_mutual_auth.c
@@ -596,7 +596,7 @@ static int connectToServerWithBackoffRetries( NetworkContext_t * pNetworkContext
          * For username and password based authentication in AWS IoT,
          * #AWS_IOT_PASSWORD_ALPN is used. More details can be found in the
          * link below.
-         * https://docs.aws.amazon.com/iot/latest/developerguide/enhanced-custom-auth-using.html
+         * https://docs.aws.amazon.com/iot/latest/developerguide/custom-authentication.html
          */
         #ifdef CLIENT_USERNAME
             opensslCredentials.pAlpnProtos = AWS_IOT_PASSWORD_ALPN;
diff --git a/demos/ota/ota_demo_core_http/ota_demo_core_http.c b/demos/ota/ota_demo_core_http/ota_demo_core_http.c
index 7c601c7ec6..30880ab66f 100644
--- a/demos/ota/ota_demo_core_http/ota_demo_core_http.c
+++ b/demos/ota/ota_demo_core_http/ota_demo_core_http.c
@@ -1070,7 +1070,7 @@ static int connectToServerWithBackoffRetries( NetworkContext_t * pNetworkContext
          * For username and password based authentication in AWS IoT,
          * #AWS_IOT_PASSWORD_ALPN is used. More details can be found in the
          * link below.
-         * https://docs.aws.amazon.com/iot/latest/developerguide/enhanced-custom-auth-using.html
+         * https://docs.aws.amazon.com/iot/latest/developerguide/custom-authentication.html
          */
         #ifdef CLIENT_USERNAME
             opensslCredentials.pAlpnProtos = AWS_IOT_PASSWORD_ALPN;
diff --git a/demos/ota/ota_demo_core_mqtt/ota_demo_core_mqtt.c b/demos/ota/ota_demo_core_mqtt/ota_demo_core_mqtt.c
index 8af428016a..6eb05f4103 100644
--- a/demos/ota/ota_demo_core_mqtt/ota_demo_core_mqtt.c
+++ b/demos/ota/ota_demo_core_mqtt/ota_demo_core_mqtt.c
@@ -944,7 +944,7 @@ static int connectToServerWithBackoffRetries( NetworkContext_t * pNetworkContext
          * For username and password based authentication in AWS IoT,
          * #AWS_IOT_PASSWORD_ALPN is used. More details can be found in the
          * link below.
-         * https://docs.aws.amazon.com/iot/latest/developerguide/enhanced-custom-auth-using.html
+         * https://docs.aws.amazon.com/iot/latest/developerguide/custom-authentication.html
          */
         #ifdef CLIENT_USERNAME
             opensslCredentials.pAlpnProtos = AWS_IOT_PASSWORD_ALPN;