diff --git a/requirements.txt b/requirements.txt
index 93ace84..2bcfab0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ seaborn
 streamlit==1.31.0
 plotly
 apprise==1.7.1
-paho-mqtt
+paho-mqtt<2.0.0
 pytest==7.1.2
 pytest-mock==3.7.0
 suntime