diff --git a/conf/app.src b/conf/app.src
index 47d9eac..33af5d3 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,6 +1,6 @@
 SOURCE_URL=https://repository.yeswiki.net/doryphore/yeswiki-doryphore-2021-05-18-2.zip
-SOURCE_SUM=7ec5ea44adf93a5dcf1c15972b529cab
-SOURCE_SUM_PRG=md5sum
+SOURCE_SUM=1d22ab67b1d19433b85c81b58483fbb766edea04bfe5e588d489d2a1d0043404
+SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
 SOURCE_FILENAME=yeswiki-doryphore-2021-05-18-2.zip