diff --git a/elm-package.json b/elm-package.json
index 8c65cb26..bd6169de 100644
--- a/elm-package.json
+++ b/elm-package.json
@@ -47,7 +47,7 @@
         "elm-lang/html": "2.0.0 <= v < 3.0.0",
         "elm-lang/svg": "2.0.0 <= v < 3.0.0",
         "pablohirafuji/elm-markdown": "2.0.4 <= v < 3.0.0",
-        "rtfeldman/elm-css": "13.1.1 <= v < 14.0.0",
+        "rtfeldman/elm-css": "13.1.1 <= v < 15.0.0",
         "rtfeldman/elm-css-helpers": "2.1.0 <= v < 3.0.0",
         "rtfeldman/elm-css-util": "1.0.2 <= v < 2.0.0",
         "tesk9/accessible-html": "3.0.0 <= v < 4.0.0",