diff --git a/javascript/builtins/Promise.json b/javascript/builtins/Promise.json
index 1587aae62accf8..e8ebf606e5f667 100644
--- a/javascript/builtins/Promise.json
+++ b/javascript/builtins/Promise.json
@@ -538,7 +538,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": false
+                "version_added": "preview"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",