diff --git a/stubs/flake8-plugin-utils/METADATA.toml b/stubs/flake8-plugin-utils/METADATA.toml
index 8e38e593b..eeb399599 100644
--- a/stubs/flake8-plugin-utils/METADATA.toml
+++ b/stubs/flake8-plugin-utils/METADATA.toml
@@ -1,5 +1,6 @@
 version = "1.3.*"
 partial_stub = true
+obsolete_since = "1.3.3" # Released on 2023-06-26
 
 [tool.stubtest]
 ignore_missing_stub = true