diff --git a/conf/app.src b/conf/app.src
index 266d075..8e4a419 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://download.pydio.com/pub/cells/release/4.2.4/linux-amd64/cells
-SOURCE_SUM=7044648becf7c3001b02472643d48b2672c1ee4e7105b5118bf6b714d2445874
+SOURCE_URL=https://download.pydio.com/pub/cells/release/4.0.7/linux-amd64/cells
+SOURCE_SUM=4c30d524c4e5ec9c4623ca7c5be3eacb7bb9331f7f01c4a1e1bc8b6e5505dc79
 SOURCE_SUM_PRG=sha256sum
 SOURCE_IN_SUBDIR=false
 SOURCE_FILENAME=cells