diff --git a/javascript/builtins/intl/DateTimeFormat.json b/javascript/builtins/intl/DateTimeFormat.json
index a34d5237c93329..7b45dc1df96bc0 100644
--- a/javascript/builtins/intl/DateTimeFormat.json
+++ b/javascript/builtins/intl/DateTimeFormat.json
@@ -163,6 +163,56 @@
                 }
               }
             },
+            "fractionalSecondDigits": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": "84"
+                  },
+                  "chrome_android": {
+                    "version_added": "84"
+                  },
+                  "edge": {
+                    "version_added": "84"
+                  },
+                  "firefox": {
+                    "version_added": "84"
+                  },
+                  "firefox_android": {
+                    "version_added": "84"
+                  },
+                  "ie": {
+                    "version_added": false
+                  },
+                  "nodejs": {
+                    "version_added": "14.6.0"
+                  },
+                  "opera": {
+                    "version_added": "70"
+                  },
+                  "opera_android": {
+                    "version_added": "60"
+                  },
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": {
+                    "version_added": false
+                  },
+                  "samsunginternet_android": {
+                    "version_added": false
+                  },
+                  "webview_android": {
+                    "version_added": "84"
+                  }
+                },
+                "status": {
+                  "experimental": false,
+                  "standard_track": true,
+                  "deprecated": false
+                }
+              }
+            },
             "hourCycle": {
               "__compat": {
                 "support": {