diff --git a/server/src/domain/sql_migrations.rs b/server/src/domain/sql_migrations.rs
index 62d9e59..ff5bb21 100644
--- a/server/src/domain/sql_migrations.rs
+++ b/server/src/domain/sql_migrations.rs
@@ -116,6 +116,7 @@ pub async fn upgrade_to_v1(pool: &DbConnection) -> std::result::Result<(), sea_o
                 .col(
                     ColumnDef::new(Groups::GroupId)
                         .integer()
+                        .auto_increment()
                         .not_null()
                         .primary_key(),
                 )
@@ -309,7 +310,7 @@ pub async fn upgrade_to_v1(pool: &DbConnection) -> std::result::Result<(), sea_o
             Table::create()
                 .table(Metadata::Table)
                 .if_not_exists()
-                .col(ColumnDef::new(Metadata::Version).tiny_integer()),
+                .col(ColumnDef::new(Metadata::Version).small_integer()),
         ),
     )
     .await?;
diff --git a/server/src/domain/sql_tables.rs b/server/src/domain/sql_tables.rs
index af5615a..1bc4f77 100644
--- a/server/src/domain/sql_tables.rs
+++ b/server/src/domain/sql_tables.rs
@@ -4,7 +4,7 @@ use sea_orm::Value;
 pub type DbConnection = sea_orm::DatabaseConnection;
 
 #[derive(Copy, PartialEq, Eq, Debug, Clone)]
-pub struct SchemaVersion(pub u8);
+pub struct SchemaVersion(pub i16);
 
 impl sea_orm::TryGetable for SchemaVersion {
     fn try_get(
@@ -12,7 +12,7 @@ impl sea_orm::TryGetable for SchemaVersion {
         pre: &str,
         col: &str,
     ) -> Result<Self, sea_orm::TryGetError> {
-        Ok(SchemaVersion(u8::try_get(res, pre, col)?))
+        Ok(SchemaVersion(i16::try_get(res, pre, col)?))
     }
 }