diff --git a/net/ddns-scripts/Makefile b/net/ddns-scripts/Makefile
index 19bebeef0..1512fa31b 100644
--- a/net/ddns-scripts/Makefile
+++ b/net/ddns-scripts/Makefile
@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ddns-scripts
 PKG_VERSION:=2.8.2
-PKG_RELEASE:=37
+PKG_RELEASE:=38
 
 PKG_LICENSE:=GPL-2.0
 
diff --git a/net/ddns-scripts/files/usr/share/ddns/default/desec.io.json b/net/ddns-scripts/files/usr/share/ddns/default/desec.io.json
index 227762ef6..4d3d21720 100644
--- a/net/ddns-scripts/files/usr/share/ddns/default/desec.io.json
+++ b/net/ddns-scripts/files/usr/share/ddns/default/desec.io.json
@@ -1,11 +1,11 @@
 {
 	"name": "desec.io",
 	"ipv4": {
-		"url": "http://update.dedyn.io/update?username=[USERNAME]&password=[PASSWORD]&hostname=[DOMAIN]&myipv4=[IP]",
+		"url": "http://update.dedyn.io/update?username=[USERNAME]&password=[PASSWORD]&hostname=[DOMAIN]&myipv4=[IP]&myipv6=preserve",
 		"answer": "good|nochg"
 	},
 	"ipv6": {
-		"url": "http://update.dedyn.io/update?username=[USERNAME]&password=[PASSWORD]&hostname=[DOMAIN]&myipv6=[IP]",
+		"url": "http://update.dedyn.io/update?username=[USERNAME]&password=[PASSWORD]&hostname=[DOMAIN]&myipv6=[IP]&myipv4=preserve",
 		"answer": "good|nochg"
 	}
 }