diff --git a/conf/app.src b/conf/app.src
index 54844dc..aefdce3 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
 SOURCE_URL=https://github.com/roundcube/roundcubemail/releases/download/1.6.0/roundcubemail-1.6.0.tar.gz
-SOURCE_SUM=2409ccdfe2e465f086cb9fc18c88dfe0aaf6ccc23924564975061209921694ba
+SOURCE_SUM=1224eaf628888e503c49d0e8a69aa4997e566c3605738d0303d9c7a09722f363
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true