diff --git a/conf/app.src b/conf/app.src
index 632c4cc..48ceb3e 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/duniter/cesium/releases/download/v1.4.2/cesium-v1.4.2-web.zip
-SOURCE_SUM=3980494e299758e19267c4145a7c1f93c42f1ec464f1342828b709945833bfb9
+SOURCE_URL=https://github.com/duniter/cesium/releases/download/v1.4.6/cesium-v1.4.6-web.zip
+SOURCE_SUM=972dea4f35f3262ec6e13fcbca068f287ca65aa7369144a0a920ee3fe4fe27e1
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=false