diff --git a/conf/app.src b/conf/app.src
index a740daf..7fe4d43 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,4 +1,4 @@
-SOURCE_URL=http://www.monitorix.org/monitorix_3.14.0-izzy1_all.deb
+SOURCE_URL=https://www.monitorix.org/old-versions/monitorix_3.14.0-izzy1_all.deb
 SOURCE_SUM=ea9867a38eb660e6ecdee111ccd133a6c881933399f7a5b6fab412b61b34dfe1
 # (Optional) Program to check the integrity (sha256sum, md5sum...)
 # default: sha256