diff --git a/config/kea-dhcp4.conf b/config/kea-dhcp4.conf
index 2979da71010a476af26b3edbcefcbd2dc9882600..ba2b8ff399b4cd4d31a1d7f41da0d25f70c03eeb 100644
--- a/config/kea-dhcp4.conf
+++ b/config/kea-dhcp4.conf
@@ -1,7 +1,7 @@
 {
     "Dhcp4": {
         # Set the lease time to 3 days
-        "valid-lifetime": 4320,
+        "valid-lifetime": 259200,
 
         # Next we setup the interfaces to be used by the server.
         "interfaces-config": {