diff --git a/tutorials/1-instances.tf b/tutorials/1-instances.tf
deleted file mode 100644
index 7ce2592..0000000
--- a/tutorials/1-instances.tf
+++ /dev/null
@@ -1,37 +0,0 @@
-# Built-in Test Instance
-resource "bytebase_instance" "test" {
-  depends_on  = [bytebase_setting.environments]
-  resource_id = "test-sample-instance"
-  environment = "environments/test"
-  title       = "Test Sample Instance"
-  engine      = "POSTGRES"
-  activation  = true
-
-  data_sources {
-    id       = "admin data source test-sample-instance"
-    type     = "ADMIN"
-    host     = "/tmp"
-    port     = "8083"
-    username = "bbsample"
-    password = ""
-  }
-}
-
-# Built-in Prod Instance
-resource "bytebase_instance" "prod" {
-  depends_on  = [bytebase_setting.environments]
-  resource_id = "prod-sample-instance"
-  environment = "environments/prod"
-  title       = "Prod Sample Instance"
-  engine      = "POSTGRES"
-  activation  = true
-
-  data_sources {
-    id       = "admin data source prod-sample-instance"
-    type     = "ADMIN"
-    host     = "/tmp"
-    port     = "8084"
-    username = "bbsample"
-    password = ""
-  }
-}
\ No newline at end of file
diff --git a/tutorials/3-2-env-setting.tf b/tutorials/3-2-env-setting.tf
index 1ca4398..00d02fa 100644
--- a/tutorials/3-2-env-setting.tf
+++ b/tutorials/3-2-env-setting.tf
@@ -46,8 +46,8 @@ resource "bytebase_policy" "data_source_query_policy_prod" {
   type       = "DATA_SOURCE_QUERY"
 
   data_source_query_policy {
-    restriction  = "FALLBACK" # or DISALLOW or RESTRICTION_UNSPECIFIED
+    restriction  = "RESTRICTION_UNSPECIFIED" # or DISALLOW or FALLBACK
     disallow_ddl = true
     disallow_dml = true
   }
-}
\ No newline at end of file
+}
diff --git a/tutorials/5-user-iam.tf b/tutorials/5-user-iam.tf
index 0c1aa90..c21127e 100644
--- a/tutorials/5-user-iam.tf
+++ b/tutorials/5-user-iam.tf
@@ -175,10 +175,10 @@ resource "bytebase_iam_policy" "project_iam" {
       condition {
         database         = "instances/prod-sample-instance/databases/hr_prod"
         schema           = "public"
-        tables           = ["employee","department"]
+        tables           = ["employee","salary"]
         expire_timestamp = "2027-07-10T16:17:49Z"
       }
     }
 
   }
-}
\ No newline at end of file
+}