diff --git a/.changes/unreleased/BUG FIXES-20251222-200736.yaml b/.changes/unreleased/BUG FIXES-20251222-200736.yaml
new file mode 100644
index 000000000..bf55423f0
--- /dev/null
+++ b/.changes/unreleased/BUG FIXES-20251222-200736.yaml	
@@ -0,0 +1,3 @@
+kind: BUG FIXES
+body: change severity level for yandex function and serverless container
+time: 2025-12-22T20:07:36.738832+03:00
diff --git a/yandex/resource_yandex_function.go b/yandex/resource_yandex_function.go
index b3a3618ed..634d4ecfc 100644
--- a/yandex/resource_yandex_function.go
+++ b/yandex/resource_yandex_function.go
@@ -547,7 +547,7 @@ func resourceYandexFunctionDiagsFromCreateVersionError(err error) diag.Diagnosti
 		return nil
 	}
 	return diag.Diagnostics{diag.Diagnostic{
-		Severity: diag.Warning,
+		Severity: diag.Error,
 		Summary:  "Failed to create version for Yandex Cloud Function",
 		Detail: "Error while requesting API to create version for Yandex Cloud Function. " +
 			"After resolving following issues apply resource again to create version for Yandex Cloud Function:\n" +
diff --git a/yandex/resource_yandex_serverless_container.go b/yandex/resource_yandex_serverless_container.go
index 2d59ae328..e8f52d662 100644
--- a/yandex/resource_yandex_serverless_container.go
+++ b/yandex/resource_yandex_serverless_container.go
@@ -562,7 +562,7 @@ func resourceYandexServerlessContainerDiagsFromDeployRevisionError(err error) di
 		return nil
 	}
 	return diag.Diagnostics{diag.Diagnostic{
-		Severity: diag.Warning,
+		Severity: diag.Error,
 		Summary:  "Failed to deploy revision for Yandex Cloud Container",
 		Detail: "Error while requesting API to deploy revision for Yandex Cloud Container. " +
 			"After resolving following issues apply resource again to deploy revision for Yandex Cloud Container:\n" +