diff --git a/secure_source_manager_branch_rule_basic/main.tf b/secure_source_manager_branch_rule_basic/main.tf
index f3871e88..0ebbeda5 100644
--- a/secure_source_manager_branch_rule_basic/main.tf
+++ b/secure_source_manager_branch_rule_basic/main.tf
@@ -10,10 +10,9 @@ resource "google_secure_source_manager_repository" "repository" {
     repository_id = "my-basic-repository-${local.name_suffix}"
     location = google_secure_source_manager_instance.instance.location
     instance = google_secure_source_manager_instance.instance.name
+
     # Prevent accidental deletions.
-    lifecycle {
-        prevent_destroy = "false"
-    }
+    deletion_policy = ""DELETE""
 }
 
 resource "google_secure_source_manager_branch_rule" "basic" {
diff --git a/secure_source_manager_branch_rule_with_fields/main.tf b/secure_source_manager_branch_rule_with_fields/main.tf
index 246232c5..5346779b 100644
--- a/secure_source_manager_branch_rule_with_fields/main.tf
+++ b/secure_source_manager_branch_rule_with_fields/main.tf
@@ -10,10 +10,9 @@ resource "google_secure_source_manager_repository" "repository" {
     repository_id = "my-initial-repository-${local.name_suffix}"
     instance = google_secure_source_manager_instance.instance.name
     location = google_secure_source_manager_instance.instance.location
+
     # Prevent accidental deletions.
-    lifecycle {
-        prevent_destroy = "false"
-    }
+    deletion_policy = ""DELETE""
 }
 
 resource "google_secure_source_manager_branch_rule" "default" {
diff --git a/secure_source_manager_repository_basic/main.tf b/secure_source_manager_repository_basic/main.tf
index 105801ec..7a43a500 100644
--- a/secure_source_manager_repository_basic/main.tf
+++ b/secure_source_manager_repository_basic/main.tf
@@ -12,7 +12,5 @@ resource "google_secure_source_manager_repository" "default" {
     instance = google_secure_source_manager_instance.instance.name
 
     # Prevent accidental deletions.
-    lifecycle {
-      prevent_destroy = "false"
-    }
+    deletion_policy = ""DELETE""
 }
diff --git a/secure_source_manager_repository_initial_config/main.tf b/secure_source_manager_repository_initial_config/main.tf
index 2d4f5b48..2dd39ebd 100644
--- a/secure_source_manager_repository_initial_config/main.tf
+++ b/secure_source_manager_repository_initial_config/main.tf
@@ -20,7 +20,5 @@ resource "google_secure_source_manager_repository" "default" {
     }
 
     # Prevent accidental deletions.
-    lifecycle {
-      prevent_destroy = "false"
-    }
+    deletion_policy = ""DELETE""
 }