diff --git a/data/deprecated.json b/data/deprecated.json
index b884d412..8791ac47 100644
--- a/data/deprecated.json
+++ b/data/deprecated.json
@@ -7,6 +7,10 @@
     "old": {"aeroway": "aerobridge"},
     "replace": {"aeroway": "jet_bridge", "highway": "corridor"}
   },
+  {
+    "old": {"aeroway": "runway", "surface": "water"},
+    "replace": {"seamark:type": "seaplane_landing_area"}
+  },
   {
     "old": {"access": "customer"},
     "replace": {"access": "customers"}