diff --git a/css/properties/transform-box.json b/css/properties/transform-box.json
index 4af9d7aeb1715a..e25ba172b2f530 100644
--- a/css/properties/transform-box.json
+++ b/css/properties/transform-box.json
@@ -123,7 +123,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
@@ -191,7 +191,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "≤13.1"
+                "version_added": "11"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",