diff --git a/css/types/length.json b/css/types/length.json
index 5d2ac08cb3e8cb..747ebbbc6a732b 100644
--- a/css/types/length.json
+++ b/css/types/length.json
@@ -310,7 +310,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "preview"
+                "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
@@ -344,7 +344,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "preview"
+                "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
@@ -421,7 +421,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "preview"
+                "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
@@ -455,7 +455,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "preview"
+                "version_added": "17.2"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",