diff --git a/requirements.txt b/requirements.txt
index 4d8ee2c..85f7cee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,5 @@ pandas==1.4.4
 numpy==1.25.1
 scipy==1.11.1
 streamlit==1.13.0
-pyspark==3.0.0
\ No newline at end of file
+pyspark==3.0.0
+altair==4.0