diff --git a/services/vdirsyncer/vdirsyncer b/services/vdirsyncer/vdirsyncer
index ab74d3b..956d53d 100755
--- a/services/vdirsyncer/vdirsyncer
+++ b/services/vdirsyncer/vdirsyncer
@@ -6,6 +6,6 @@ ip route ls | grep -q '.'
 # check if the gpg-agent is running
 pgrep gpg-agent > /dev/null
 
-vdirsyncer -v WARNING sync 2>&1
+vdirsyncer -v CRITICAL sync 2>&1
 
 exec sleep 10m