diff --git a/bremen.freifunk.net.zone b/bremen.freifunk.net.zone
index ac68126..3b7eb04 100644
--- a/bremen.freifunk.net.zone
+++ b/bremen.freifunk.net.zone
@@ -1,6 +1,6 @@
 $TTL 1D
 					IN	SOA	dns noc.bremen.freifunk.net. (
-				    2016041203	; Serial
+				    2016042501	; Serial
 				    4H		; Refresh
 				    1H		; Retry
 				    2W		; Expire
@@ -36,7 +36,8 @@ vpn01			30s	A	176.9.147.221
 vpn02			30s	A	31.24.146.93
 vpn03			30s	A	37.72.148.148
 			30s	AAAA	2a06:8782:ffbb:3::2
-vpn04			30s	A	136.243.21.39
+vpn04			30s	A	136.243.21.41
+			30s	AAAA	2a01:4f8:211:1225::29
 vpn05			30s	A	5.9.250.37
 			30s	AAAA	2a01:4f8:160:44d0:ffbc::2
 vpn06			30s	A	185.117.214.3