1 files changed, 2 insertions, 0 deletions
diff --git a/README.md b/README.md
index 3726b61..8ae53f3 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ This is the materials for a 1 hour workshop on IoT.
 * Install Arduino IDE
 * Install the "ESP8266 core" for Arduino, follow the guide on
   https://github.com/esp8266/Arduino#installing-with-boards-manager.
+* Install PubSubClient library with Library manager from within the
+  Arduino IDE.
 
 **Assignments**