diff --git a/css/properties/column-gap.json b/css/properties/column-gap.json
index 0a5ddcde1177be..68c80bad70201d 100644
--- a/css/properties/column-gap.json
+++ b/css/properties/column-gap.json
@@ -300,7 +300,7 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "12.1"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",
@@ -339,7 +339,7 @@
                 "opera": "mirror",
                 "opera_android": "mirror",
                 "safari": {
-                  "version_added": false
+                  "version_added": "12"
                 },
                 "safari_ios": "mirror",
                 "samsunginternet_android": "mirror",