diff --git a/mix.exs b/mix.exs
index a6f7f083..f227a9ab 100644
--- a/mix.exs
+++ b/mix.exs
@@ -67,7 +67,7 @@ defmodule GodwokenExplorer.MixProject do
       {:phoenix_ecto, "~> 4.4"},
       {:ecto_sql, "~> 3.11.0"},
       {:postgrex, ">= 0.0.0"},
-      {:phoenix_html, "~> 3.3.0"},
+      {:phoenix_html, "~> 4.0.0"},
       {:phoenix_view, "~> 2.0"},
       {:phoenix_live_reload, "~> 1.4.0", only: :dev},
       {:phoenix_live_dashboard, "~> 0.8.0"},