diff --git a/packages/demo/db-seed.ts b/packages/demo/db-seed.ts
index 4a5fc09..62924ce 100644
--- a/packages/demo/db-seed.ts
+++ b/packages/demo/db-seed.ts
@@ -62,7 +62,7 @@ async function main() {
     });
     const { data: persistedContacts, error: errorContacts } = await supabase
         .from('contacts')
-        .insert(contacts)
+        .insert(contacts.map(({ id, ...contact }) => contact))
         .select();
 
     if (errorContacts) {
diff --git a/packages/demo/src/contacts/ContactInputs.tsx b/packages/demo/src/contacts/ContactInputs.tsx
index 9445fbb..cfab08f 100644
--- a/packages/demo/src/contacts/ContactInputs.tsx
+++ b/packages/demo/src/contacts/ContactInputs.tsx
@@ -4,6 +4,7 @@ import {
     ReferenceInput,
     AutocompleteInput,
     BooleanInput,
+    required,
 } from 'react-admin';
 import { Divider, Box } from '@mui/material';
 
@@ -11,15 +12,23 @@ export const ContactInputs = () => {
     return (
         <Box flex="1" mt={-1}>
             <Box display="flex" width={430}>
-                <TextInput source="first_name" fullWidth />
+                <TextInput
+                    source="first_name"
+                    validate={required()}
+                    fullWidth
+                />
                 <Spacer />
-                <TextInput source="last_name" fullWidth />
+                <TextInput source="last_name" validate={required()} fullWidth />
             </Box>
             <Box display="flex" width={430}>
                 <TextInput source="title" fullWidth />
                 <Spacer />
                 <ReferenceInput source="company_id" reference="companies">
-                    <AutocompleteInput optionText="name" fullWidth />
+                    <AutocompleteInput
+                        optionText="name"
+                        fullWidth
+                        validate={required()}
+                    />
                 </ReferenceInput>
             </Box>
             <Divider />
diff --git a/supabase/migrations/20240606161030_allow_nullable.sql b/supabase/migrations/20240606161030_allow_nullable.sql
new file mode 100644
index 0000000..5261056
--- /dev/null
+++ b/supabase/migrations/20240606161030_allow_nullable.sql
@@ -0,0 +1,31 @@
+alter table "public"."companies" alter column "address" drop not null;     
+alter table "public"."companies" alter column "city" drop not null;        
+alter table "public"."companies" alter column "created_at" drop not null;  
+alter table "public"."companies" alter column "linkedIn" drop not null;    
+alter table "public"."companies" alter column "logo" drop not null;        
+alter table "public"."companies" alter column "phone_number" drop not null;
+alter table "public"."companies" alter column "sales_id" drop not null;    
+alter table "public"."companies" alter column "sector" drop not null;      
+alter table "public"."companies" alter column "size" drop not null;        
+alter table "public"."companies" alter column "stateAbbr" drop not null;   
+alter table "public"."companies" alter column "website" drop not null;     
+alter table "public"."companies" alter column "zipcode" drop not null;     
+alter table "public"."contacts" alter column "acquisition" drop not null;  
+alter table "public"."contacts" alter column "background" drop not null;   
+alter table "public"."contacts" alter column "email" drop not null;        
+alter table "public"."contacts" alter column "first_seen" drop not null;   
+alter table "public"."contacts" alter column "gender" drop not null;       
+alter table "public"."contacts" alter column "last_seen" drop not null;    
+alter table "public"."contacts" alter column "phone_number1" drop not null;
+alter table "public"."contacts" alter column "phone_number2" drop not null;
+alter table "public"."contacts" alter column "sales_id" drop not null;     
+alter table "public"."contacts" alter column "status" drop not null;       
+alter table "public"."contacts" alter column "title" drop not null;        
+alter table "public"."deals" alter column "amount" drop not null;          
+alter table "public"."deals" alter column "contact_ids" drop not null;     
+alter table "public"."deals" alter column "created_at" drop not null;      
+alter table "public"."deals" alter column "description" drop not null;     
+alter table "public"."deals" alter column "sales_id" drop not null;        
+alter table "public"."deals" alter column "start_at" drop not null;        
+alter table "public"."deals" alter column "type" drop not null;            
+alter table "public"."deals" alter column "updated_at" drop not null;    
\ No newline at end of file