diff --git a/mix.exs b/mix.exs
index b3a9ec91..5d2d6b06 100644
--- a/mix.exs
+++ b/mix.exs
@@ -45,7 +45,7 @@ defmodule Lynx.MixProject do
       {:phoenix_ecto, "~> 4.4"},
       {:ecto_sql, "~> 3.6"},
       {:postgrex, ">= 0.0.0"},
-      {:phoenix_html, "~> 3.0"},
+      {:phoenix_html, "~> 4.0"},
       {:phoenix_live_reload, "~> 1.2", only: :dev},
       {:phoenix_live_view, "~> 0.17.5"},
       {:floki, ">= 0.30.0", only: :test},