diff --git a/models/marts/customer360/customers.yml b/models/marts/customer360/customers.yml
index 80c288d..0938931 100644
--- a/models/marts/customer360/customers.yml
+++ b/models/marts/customer360/customers.yml
@@ -43,6 +43,7 @@ semantic_models:
         type: categorical
       - name: first_ordered_at
         type: time
+        expr: cast(first_ordered_at as DATE)
         type_params:
           time_granularity: day
       - name: last_ordered_at
diff --git a/models/marts/customer360/order_items.yml b/models/marts/customer360/order_items.yml
index f577416..f1e4482 100644
--- a/models/marts/customer360/order_items.yml
+++ b/models/marts/customer360/order_items.yml
@@ -17,7 +17,7 @@ semantic_models:
         expr: product_id
     dimensions:
       - name: ordered_at
-        expr: cast(ordered_at as DATETIME)
+        expr: cast(ordered_at as DATE)
         type: time
         type_params:
           time_granularity: day
@@ -41,7 +41,10 @@ semantic_models:
         expr: case when is_drink_item = 1 then product_price else 0 end
       - name: median_revenue
         description: The median revenue generated for each order item.
-        agg: median
+        agg: percentile
+        agg_params:
+          percentile: .5
+          use_approximate_percentile: True 
         expr: product_price
 
 groups:
@@ -125,8 +128,8 @@ metrics:
     type: cumulative
     type_params:
       measure: revenue
-      cumulative_type_params:
-        period_agg: last
+      # cumulative_type_params:
+      #   period_agg: last
 
 saved_queries:
   - name: order_metrics
diff --git a/models/marts/customer360/orders.yml b/models/marts/customer360/orders.yml
index a4e3cc5..ccee230 100644
--- a/models/marts/customer360/orders.yml
+++ b/models/marts/customer360/orders.yml
@@ -60,7 +60,7 @@ semantic_models:
         expr: customer_id
     dimensions:
       - name: ordered_at
-        expr: ordered_at
+        expr: cast(ordered_at as DATE)
         type: time
         type_params:
           time_granularity: day
@@ -152,4 +152,4 @@ metrics:
     type_params:
       measure: order_count
       window: 7 days
-# // test
\ No newline at end of file
+# // test
diff --git a/requirements.txt b/requirements.txt
index 5b0f807..b6dc0cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
-dbt-metricflow[snowflake]==0.0.5
+dbt-core
+dbt-snowflake
 pre-commit~=3.0.4
 sqlfluff-templater-dbt~=2.0.0a5
 sqlfluff~=2.0.0a5