diff --git a/stubs/urllib3/METADATA.toml b/stubs/urllib3/METADATA.toml
index 791b8435e..84c49f9bb 100644
--- a/stubs/urllib3/METADATA.toml
+++ b/stubs/urllib3/METADATA.toml
@@ -1,4 +1,5 @@
 version = "1.26.*"
+obsolete_since = "2.0.0" # Released on 2023-04-26
 
 [tool.stubtest]
 ignore_missing_stub = true