diff --git a/schema.js b/schema.js
index 3bdff7ec..8de79931 100644
--- a/schema.js
+++ b/schema.js
@@ -10,7 +10,6 @@ const Joi = require('joi');
 // * imports.whosonfirst.importConstituencies (boolean) (default: false)
 // * imports.whosonfirst.importIntersections (boolean) (default: false)
 // * imports.whosonfirst.importPlace (integer OR array[integer]) (default: none)
-// * imports.whosonfirst.api_key (string) (default: none) DEPRECATED
 // * imports.whosonfirst.missingFilesAreFatal (boolean) (default: false)
 
 module.exports = Joi.object().keys({
@@ -21,7 +20,6 @@ module.exports = Joi.object().keys({
         Joi.number().integer(),
         Joi.array().items(Joi.number().integer())
       ],
-      api_key: Joi.string(),
       importVenues: Joi.boolean().default(false).truthy('yes').falsy('no').insensitive(true),
       importPostalcodes: Joi.boolean().default(false).truthy('yes').falsy('no').insensitive(true),
       importConstituencies: Joi.boolean().default(false).truthy('yes').falsy('no').insensitive(true),