diff --git a/.tool-versions b/.tool-versions
index 44acbf0..fe79c39 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
-erlang 26.0.2
-elixir 1.15.4
+erlang 27.0.1
+elixir 1.16.3
diff --git a/mix.exs b/mix.exs
index b03805f..dd25c69 100644
--- a/mix.exs
+++ b/mix.exs
@@ -9,7 +9,7 @@ defmodule AshAuthentication.Phoenix.MixProject do
       app: :ash_authentication_phoenix,
       version: @version,
       description: "Phoenix integration for Ash Authentication",
-      elixir: "~> 1.14",
+      elixir: "~> 1.16",
       start_permanent: Mix.env() == :prod,
       preferred_cli_env: [ci: :test],
       aliases: aliases(),