diff --git a/2024/12.md b/2024/12.md
index 39f6c760..4e9d47af 100644
--- a/2024/12.md
+++ b/2024/12.md
@@ -121,7 +121,7 @@ When applicable, use these emoji as a prefix to the agenda item topic.
     | 2.7   | 15m     | [`Error.isError`](https://github.com/tc39/proposal-is-error/issues/7) to stage 3? | Jordan Harband |
     | 2.7   | 15m     | [iterator sequencing](https://github.com/tc39/proposal-iterator-sequencing) for Stage 3 ([tests](https://github.com/tc39/test262/pull/4326)) ([slides](https://docs.google.com/presentation/d/1EHMDcnV9zJ1E7BRhKmYtzHchZvOzjWynR3W-VdNxglw)) | Michael Ficarra |
     | 2     | 5m      | [AsyncContext](https://github.com/tc39/proposal-async-context) request for Stage 2.7 reviewers | Andreu Botella |
-    | 2     | 15m     | [Upsert (formerly Map.emplace)](https://github.com/tc39/proposal-upsert) Update and request for Stage 2 reviewers ([Slides](https://docs.google.com/presentation/d/15sWTvdWIo9Jt12LFRNBPJo1N_8xsMSCB3jy73HBFX-M/))| Daniel Minor |
+    | 2     | 30m     | [Upsert (formerly Map.emplace)](https://github.com/tc39/proposal-upsert) Update and request for Stage 2 reviewers ([Slides](https://docs.google.com/presentation/d/15sWTvdWIo9Jt12LFRNBPJo1N_8xsMSCB3jy73HBFX-M/))| Daniel Minor |
     | 2     | 40m     | [ESM Phase Imports](https://github.com/tc39/proposal-esm-phase-imports) for Stage 2.7 | Guy Bedford |
     | 1     | 30m     | [Immutable ArrayBuffer](https://github.com/tc39/proposal-immutable-arraybuffer) to stage 2? | Mark Miller |
     | 0     | 20m     | [Import Sync](https://github.com/guybedford/proposal-import-sync) stage 1 discussion | Guy Bedford |