diff --git a/README.md b/README.md
index d13d396..8492ff2 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ emoji: 📈
 colorFrom: green
 colorTo: blue
 sdk: streamlit
-sdk_version: 1.17.0
+sdk_version: 1.21.0
 app_file: app.py
 pinned: false
 license: openrail
diff --git a/requirements.txt b/requirements.txt
index 1caba66..810350f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,5 @@ streamlit
 pandas
 statsmodels
 plotly
-matplotlib
\ No newline at end of file
+matplotlib
+altair<5
\ No newline at end of file