diff --git a/lib/dns/api b/lib/dns/api
index d74a54733a..c12a93c044 100644
--- a/lib/dns/api
+++ b/lib/dns/api
@@ -1,3 +1,3 @@
 LIBINTERFACE = 39
-LIBREVISION = 3
+LIBREVISION = 4
 LIBAGE = 1