diff --git a/backend/install_clean_vars.sh b/backend/install_clean_vars.sh
index 9a2eb16cf0e91a34909a5334e9a0f4bd5d35e7eb..a42660f79056610516a1fc5536db9c900f00a681 100755
--- a/backend/install_clean_vars.sh
+++ b/backend/install_clean_vars.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 
-export CLEANDATE="2019-08-08"
+export CLEANDATE="2019-09-07"