diff --git a/Code-Sprint-QGIS-Grenoble,-March-2024.md b/Code-Sprint-QGIS-Grenoble,-March-2024.md
index 2a8316e..08c69e9 100644
--- a/Code-Sprint-QGIS-Grenoble,-March-2024.md
+++ b/Code-Sprint-QGIS-Grenoble,-March-2024.md
@@ -74,7 +74,7 @@ _**By Train**_: Grenoble railway + Tramway A direction  "FONTAINE La Poya / PONT
 | 17   | Sébastien Peillet | France     | 26/03    | 09:00   | ?  | ?  | ?    | peillet.seb@protonmail.com |
 | 18   | Florent Fougères | France     | 25/03    | ?   | ?  | ?  | ?    | florent dot fougeres at oslandia dot com |
 | 19   | David Marteau | France       | 26/03     | 10h30 | 26/03 | ? | ? | david.marteau at 3liz dot com | 
-| 20   | Jean-Marie Arsac | France   | 25/03    | ? | ? | ? |? | jmarsac at azimut dot fr |
+| 20   | Jean-Marie Arsac | France   | 26/03    | 9:00 | 28/03 | 17:30 |? | jmarsac at azimut dot fr |
 ## Individual Preparation 
 
 * Bring your own laptop (and power supply and adapter!). French sockets (Type E) (230V/50Hz) look like this: