diff --git a/requirements.txt b/requirements.txt
index c112b1b..c33f9cc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 altair==4.2.2
 nowcasting_datamodel==1.4.19
+pvsite_datamodel==1.0.1
 numpy==1.24.1
 pandas==1.5.2
 plotly==5.10.0
diff --git a/src/pvsite_forecast.py b/src/pvsite_forecast.py
index 1096cf7..b9a7b0a 100644
--- a/src/pvsite_forecast.py
+++ b/src/pvsite_forecast.py
@@ -32,7 +32,7 @@ def pvsite_forecast_page():
         ]
       
     site_selection = st.sidebar.selectbox("Select sites by site_uuid", site_uuids,)
-    starttime = st.sidebar.date_input("Start Date", min_value=datetime.today - timedelta(days=3), max_value=datetime.today())
+    starttime = st.sidebar.date_input("Start Date", min_value=datetime.today() - timedelta(days=3), max_value=datetime.today())
     st.write("Forecast for", site_selection, "starting on", starttime)
 
     # get forecast values for selected sites and plot