diff --git a/lib/dns/api b/lib/dns/api
index 14065b334f..ba5095337b 100644
--- a/lib/dns/api
+++ b/lib/dns/api
@@ -9,5 +9,5 @@
 # 9.11: 160-169,1100-1199
 # 9.12: 1200-1299
 LIBINTERFACE = 1110
-LIBREVISION = 0
+LIBREVISION = 1
 LIBAGE = 0
diff --git a/lib/isc/api b/lib/isc/api
index 7deba8362c..b8c677bb08 100644
--- a/lib/isc/api
+++ b/lib/isc/api
@@ -9,5 +9,5 @@
 # 9.11: 160-169,1100-1199
 # 9.12: 1200-1299
 LIBINTERFACE = 1105
-LIBREVISION = 1
+LIBREVISION = 2
 LIBAGE = 0