diff --git a/app/forms.py b/app/forms.py
index 1ecae15..82fe86b 100644
--- a/app/forms.py
+++ b/app/forms.py
@@ -1,10 +1,9 @@
 from constants import DATASETS
 from flask_wtf import FlaskForm
 from wtforms import SelectField, SubmitField
-from wtforms.validators import DataRequired
 
 
 # NOTE The choices should be shorter
 class DatasetForm(FlaskForm):
-    dataset = SelectField(validators=[DataRequired()], choices=DATASETS)
+    dataset = SelectField(choices=DATASETS)
     submit = SubmitField("Submit")
diff --git a/shell.nix b/shell.nix
index ec4e926..541c523 100644
--- a/shell.nix
+++ b/shell.nix
@@ -13,7 +13,7 @@ pkgs.mkShell {
     matplotlib
     folium
     pytest
-    selenium
+    beautifulsoup4
     # Development tools
     black
     isort