diff --git a/stubs/chardet/METADATA.toml b/stubs/chardet/METADATA.toml
index c98db6304..a5fbf3d5b 100644
--- a/stubs/chardet/METADATA.toml
+++ b/stubs/chardet/METADATA.toml
@@ -1 +1,2 @@
 version = "5.0.*"
+obsolete_since = "5.1.0" # Released on 2022-12-01