diff --git a/conf/app.src b/conf/app.src
index 9fac2dc..83d6807 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
 SOURCE_URL=https://github.com/the-djmaze/snappymail/releases/download/v2.18.0/snappymail-2.18.0.tar.gz
-SOURCE_SUM=71c1ffb29b9784462a58c0e2858a2e0ef37ea8d3
+SOURCE_SUM=f372e31152ea684bbaa39d740812b6d6dc3eb430d974fcf65afd28380994aeb6
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=false