diff --git a/dirs/ecommerce/migrations/20240808130858.sql b/dirs/ecommerce/migrations/20240808130858.sql
new file mode 100644
index 0000000..22316e9
--- /dev/null
+++ b/dirs/ecommerce/migrations/20240808130858.sql
@@ -0,0 +1,2 @@
+-- Modify "product_reviews" table
+ALTER TABLE `product_reviews` ADD COLUMN `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP;
diff --git a/dirs/ecommerce/migrations/atlas.sum b/dirs/ecommerce/migrations/atlas.sum
index 809a661..ffe05a3 100644
--- a/dirs/ecommerce/migrations/atlas.sum
+++ b/dirs/ecommerce/migrations/atlas.sum
@@ -1,4 +1,4 @@
-h1:luWIccvAY7xNWVYnfbb7RnEtJTviDThL+UZK3SGv8XM=
+h1:806odcq2F5kkRaJYwq2nosWuoruvz8C5bYCzQRtiLuc=
 20230316085611.sql h1:br6W6LPEnnsejlz/7hRm9zthwStCzjN2vZkqVPxlmvo=
 20230316090502.sql h1:GfeRjkSeoCt3JVRtLQNa/r50lRfpAPXS7AqTU2ZNFgY=
 20230531091333_products_categories.sql h1:59q2M59dV5dJNv4Lyb2TAJz8V6HekgkLn9z4DoL98jA=
@@ -32,3 +32,4 @@ h1:luWIccvAY7xNWVYnfbb7RnEtJTviDThL+UZK3SGv8XM=
 20240801130915.sql h1:wqC2zDRfVQWUWiV5ItznG3xy2zN7hCr7dGLdLFYW6+c=
 20240804130742.sql h1:kB1qxstPuROcCPaWyqXh0ZnjpBsOSxGRLQJTa+CP03w=
 20240806130855.sql h1:rsSJMFdmgp33FVqqG5ONW+F8tv3+x1D2xEn+ATwNJw0=
+20240808130858.sql h1:z1ZMAu6Olrqut5mavBk5M9CbJ0Yb7Calp9vSMyFJEvY=
diff --git a/dirs/ecommerce/schema.sql b/dirs/ecommerce/schema.sql
index 7c6a503..dd2c7e5 100644
--- a/dirs/ecommerce/schema.sql
+++ b/dirs/ecommerce/schema.sql
@@ -1,4 +1,4 @@
- -- Create 'users' table
+-- Create 'users' table
 CREATE TABLE `users` (
 `id` int NOT NULL,
 `user_name` varchar(255) NOT NULL,
@@ -47,6 +47,7 @@ CREATE TABLE `product_reviews` (
 `user_id` int NOT NULL,
 `rating` int NOT NULL,
 `review_text` text NOT NULL,
+`created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
 PRIMARY KEY (`id`),
 INDEX `product_id` (`product_id`),
 INDEX `user_id` (`user_id`),