diff --git a/lib/validate.js b/lib/validate.js
index ea1fa25c8f..0eaf3570fb 100644
--- a/lib/validate.js
+++ b/lib/validate.js
@@ -258,7 +258,7 @@ export function linkSchema (args) {
   return object({
     title: titleValidator,
     text: textValidator(MAX_POST_TEXT_LENGTH),
-    url: string().url().required('required'),
+    url: string().https().required('required'),
     ...advPostSchemaMembers(args),
     ...subSelectSchemaMembers(args)
   }).test({