diff --git a/ruby_event_store-browser/elm/elm.json b/ruby_event_store-browser/elm/elm.json
index c4c80ddd51..1f30e62b6c 100644
--- a/ruby_event_store-browser/elm/elm.json
+++ b/ruby_event_store-browser/elm/elm.json
@@ -18,7 +18,7 @@
             "elm-community/list-extra": "8.7.0",
             "elm-community/maybe-extra": "5.3.0",
             "feathericons/elm-feather": "1.5.0",
-            "justinmimbs/timezone-data": "10.1.1",
+            "justinmimbs/timezone-data": "11.0.0",
             "klazuka/elm-json-tree-view": "2.1.0",
             "rtfeldman/elm-iso8601-date-strings": "1.1.4",
             "ryan-haskell/date-format": "1.0.0"