diff --git a/podcasts/config/lav-20200421.json b/podcasts/config/lav-20200421.json
index 5781097..a9a34f9 100644
--- a/podcasts/config/lav-20200421.json
+++ b/podcasts/config/lav-20200421.json
@@ -5,38 +5,38 @@
 	"short_description" : "#63 - Musique libre - Merci le libre - École - Visioconférences - Cryptpad",
 	"chapters"  : [
 		{
-			"start_timestamp"       : "00:00:00.000",
-			"end_timestamp"         : "00:00:00.000",
+			"start_timestamp"       : "00:02:14.640",
+			"end_timestamp"         : "00:19:23.000",
 			"short_chapter_name"    : "interview-laurent-leemans-musique-libre",
 			"chapter_title"         : "Interview de Laurent Leemans qui fait de la musique libre"
 		},
   		{
-			"start_timestamp"       : "00:00:00.000",
-			"end_timestamp"         : "00:00:00.000",
+			"start_timestamp"       : "00:19:46.750",
+			"end_timestamp"         : "00:30:04.770",
 			"short_chapter_name"    : "chronique-emmanuel-revah-merci-le-libre",
 			"chapter_title"         : "Chronique d'Emmanuel Revah sur le thème « Merci le libre »"
 		},
   		{
-			"start_timestamp"       : "00:00:00.000",
-			"end_timestamp"         : "00:00:00.000",
+			"start_timestamp"       : "00:30:07.940",
+			"end_timestamp"         : "00:51:58.600",
+			"short_chapter_name"    : "interview-ludovic-dubost-crytpad",
+			"chapter_title"         : "Interview de Ludovic Dubost sur Cryptpad"
+		},
+  		{
+			"start_timestamp"       : "00:55:35.115",
+			"end_timestamp"         : "01:09:08.400",
 			"short_chapter_name"    : "interview-vincent-xavier-jumel-ecole-et-confinement",
 			"chapter_title"         : "Interview de Vincent-Xavier Jumel, professeur de mathématiques, sur école et confinement"
 		},
   		{
-			"start_timestamp"       : "00:00:00.000",
-			"end_timestamp"         : "00:00:00.000",
+			"start_timestamp"       : "01:09:16.655",
+			"end_timestamp"         : "01:21:54.510",
 			"short_chapter_name"    : "chronique-isabella-vanni-visioconference",
 			"chapter_title"         : "Chronique d'Isabella Vanni sur les outils de visioconférence libres"
 		},
-  		{
-			"start_timestamp"       : "00:00:00.000",
-			"end_timestamp"         : "00:00:00.000",
-			"short_chapter_name"    : "interview-ludovic-dubost-crytpad",
-			"chapter_title"         : "Interview de Ludovic Dubost sur Cryptpad"
-		},
 	   {
-			"start_timestamp"       : "01:00:00.000",
-			"end_timestamp"         : "01:00:00.000",
+			"start_timestamp"       : "01:22:32.300",
+			"end_timestamp"         : "01:24:17.890",
 			"short_chapter_name"    : "annonces",
 			"chapter_title"         : "Annonces"
 		}