diff --git a/dbt_project.yml b/dbt_project.yml
index 85f5b16..d5603c4 100644
--- a/dbt_project.yml
+++ b/dbt_project.yml
@@ -70,7 +70,7 @@ vars:
 
   # The timestamp of when the Guest Squad activated the Feature Flag that 
   # activated the big bang refactor of the Guest Products logic.
-  "guest_products_feature_flag_activation_timestamp": "'2025-06-08T00:00:00Z'"
+  "guest_products_feature_flag_activation_timestamp": "'2025-06-08T00:00:00+00:00'"
 
   # A distant future date to use as a default when cutoff values are missing.
   "end_of_time": "'2050-12-31'"