diff --git a/examples/FileDownload/FileDownload.ino b/examples/FileDownload/FileDownload.ino
index 3598043..25fa387 100644
--- a/examples/FileDownload/FileDownload.ino
+++ b/examples/FileDownload/FileDownload.ino
@@ -2,6 +2,7 @@
  *
  * For this example, you need to install CRC32 library:
  *   https://github.com/vshymanskyy/CRC32.git
+ *   or from http://librarymanager/all#CRC32+checksum
  *
  * TinyGSM Getting Started guide:
  *   http://tiny.cc/tiny-gsm-readme
diff --git a/examples/MqttClient/MqttClient.ino b/examples/MqttClient/MqttClient.ino
index 95ee880..bf7dc03 100644
--- a/examples/MqttClient/MqttClient.ino
+++ b/examples/MqttClient/MqttClient.ino
@@ -2,6 +2,7 @@
  *
  * For this example, you need to install PubSubClient library:
  *   https://github.com/knolleary/pubsubclient/releases/latest
+ *   or from http://librarymanager/all#PubSubClient
  *
  * TinyGSM Getting Started guide:
  *   http://tiny.cc/tiny-gsm-readme