diff --git a/README.md b/README.md
index 7f1379e..5b85a54 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ sudo apt update -y && sudo apt upgrade -y && sudo apt install python3 python3-pi
 pip3 install Flask
 pip3 install adafruit_circuitpython_neopixel
 pip3 install Requests
-pip3 install stupidArtnet
+pip3 install sacn
 pip3 install wifi
 pip3 install paho-mqtt
 pip3 install get-mac
diff --git a/server/app.py b/server/app.py
index 5098fee..6b81f21 100644
--- a/server/app.py
+++ b/server/app.py
@@ -125,7 +125,7 @@ def mqtt_publisher(universe):
             print(packet.dmxData)
             global dmx_values
             dmx_values = packet.dmxData
-        receiver.join_multicast()
+        receiver.join_multicast(universe)
         while True:
             if dmx_values is not None:
                 for channel, value in enumerate(dmx_values):