diff --git a/tests/bakery_chain_tests.rs b/tests/bakery_chain_tests.rs
index c58be9eb..292acdfc 100644
--- a/tests/bakery_chain_tests.rs
+++ b/tests/bakery_chain_tests.rs
@@ -31,4 +31,6 @@ async fn create_entities(db: &DbConn) {
     crud::create_cake::test_create_cake(db).await;
     crud::create_lineitem::test_create_lineitem(db).await;
     crud::create_order::test_create_order(db).await;
+
+    crud::updates::test_update_cake(db).await;
 }
diff --git a/tests/crud/mod.rs b/tests/crud/mod.rs
index 9fbf27e6..c69dee3a 100644
--- a/tests/crud/mod.rs
+++ b/tests/crud/mod.rs
@@ -5,6 +5,7 @@ pub use super::bakery_chain::*;
 pub mod create_cake;
 pub mod create_lineitem;
 pub mod create_order;
+pub mod updates;
 
 pub async fn test_create_bakery(db: &DbConn) {
     let seaside_bakery = bakery::ActiveModel {
diff --git a/tests/crud/updates.rs b/tests/crud/updates.rs
new file mode 100644
index 00000000..615e89f2
--- /dev/null
+++ b/tests/crud/updates.rs
@@ -0,0 +1,55 @@
+pub use super::*;
+use rust_decimal_macros::dec;
+
+pub async fn test_update_cake(db: &DbConn) {
+    let seaside_bakery = bakery::ActiveModel {
+        name: Set("SeaSide Bakery".to_owned()),
+        profit_margin: Set(10.4),
+        ..Default::default()
+    };
+    let bakery_insert_res: InsertResult = Bakery::insert(seaside_bakery)
+        .exec(db)
+        .await
+        .expect("could not insert bakery");
+
+    let mud_cake = cake::ActiveModel {
+        name: Set("Mud Cake".to_owned()),
+        price: Set(dec!(10.25)),
+        gluten_free: Set(false),
+        bakery_id: Set(Some(bakery_insert_res.last_insert_id as i32)),
+        ..Default::default()
+    };
+
+    let cake_insert_res: InsertResult = Cake::insert(mud_cake)
+        .exec(db)
+        .await
+        .expect("could not insert cake");
+
+    let cake: Option<cake::Model> = Cake::find_by_id(cake_insert_res.last_insert_id)
+        .one(db)
+        .await
+        .expect("could not find cake");
+
+    assert!(cake.is_some());
+    let cake_model = cake.unwrap();
+    assert_eq!(cake_model.name, "Mud Cake");
+    assert_eq!(cake_model.price, dec!(10.25));
+    assert_eq!(cake_model.gluten_free, false);
+
+    let mut cake_am: cake::ActiveModel = cake_model.into();
+    cake_am.name = Set("Extra chocolate mud cake".to_owned());
+    cake_am.price = Set(dec!(20.00));
+
+    let _cake_update_res: cake::ActiveModel = Cake::update(cake_am)
+        .exec(db)
+        .await
+        .expect("could not update cake");
+
+    let cake: Option<cake::Model> = Cake::find_by_id(cake_insert_res.last_insert_id)
+        .one(db)
+        .await
+        .expect("could not find cake");
+    let cake_model = cake.unwrap();
+    assert_eq!(cake_model.name, "Extra chocolate mud cake");
+    assert_eq!(cake_model.price, dec!(20.00));
+}