diff --git a/requirements.txt b/requirements.txt
index 6624403..13b2b56 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,5 @@ apprise==1.2.1
 paho-mqtt
 pytest==7.1.2
 pytest-mock==3.7.0
-suntime
\ No newline at end of file
+suntime
+altair<5
\ No newline at end of file