diff --git a/vertex_ai/index_endpoint_deploy_psc/main.tf b/vertex_ai/index_endpoint_deploy_psc/main.tf
index 7e69ba07..87d5119d 100644
--- a/vertex_ai/index_endpoint_deploy_psc/main.tf
+++ b/vertex_ai/index_endpoint_deploy_psc/main.tf
@@ -34,7 +34,7 @@ resource "google_vertex_ai_index_endpoint" "default" {
   private_service_connect_config {
     enable_private_service_connect = true
     project_allowlist = [
-      data.google_project.project.name,
+      data.google_project.project.project_id,
     ]
   }
 }
diff --git a/vertex_ai/index_endpoint_mutate_psc/main.tf b/vertex_ai/index_endpoint_mutate_psc/main.tf
index 5472c20d..cad62831 100644
--- a/vertex_ai/index_endpoint_mutate_psc/main.tf
+++ b/vertex_ai/index_endpoint_mutate_psc/main.tf
@@ -41,7 +41,7 @@ resource "google_vertex_ai_index_endpoint" "default" {
   private_service_connect_config {
     enable_private_service_connect = true
     project_allowlist = [
-      data.google_project.project.name,
+      data.google_project.project.project_id,
     ]
   }
 }
diff --git a/vertex_ai/index_endpoint_psc/main.tf b/vertex_ai/index_endpoint_psc/main.tf
index 163c17d9..b3b40a20 100644
--- a/vertex_ai/index_endpoint_psc/main.tf
+++ b/vertex_ai/index_endpoint_psc/main.tf
@@ -23,7 +23,7 @@ resource "google_vertex_ai_index_endpoint" "default" {
   private_service_connect_config {
     enable_private_service_connect = true
     project_allowlist = [
-      data.google_project.project.name,
+      data.google_project.project.project_id,
     ]
   }
 }