diff --git a/contrib/vdirsyncer.service b/contrib/vdirsyncer.service
index ac5c45c..5f4a5a0 100644
--- a/contrib/vdirsyncer.service
+++ b/contrib/vdirsyncer.service
@@ -4,5 +4,5 @@ Documentation=https://vdirsyncer.readthedocs.org/
 
 [Service]
 ExecStart=/usr/bin/vdirsyncer sync
-RuntimeMaxSec=30s
+RuntimeMaxSec=3m
 Restart=on-failure