diff --git a/stubs/decorator/METADATA.toml b/stubs/decorator/METADATA.toml
index a59937f02dc8..1415c36c4373 100644
--- a/stubs/decorator/METADATA.toml
+++ b/stubs/decorator/METADATA.toml
@@ -1,2 +1,3 @@
 version = "5.2.*"
 upstream-repository = "https://github.com/micheles/decorator"
+obsolete-since = "5.3.0" # Released on 2026-05-17