I inherited an Elixir app from a now absent supervisor. My skills with Elixir and Phoenix are not great.

I need to upgrade my dependencies so I can get this thing to use TLS3. Here’s the error:

== Compilation error in file lib/[redacted]/repo.ex ==
** (ArgumentError) adapter Ecto.Adapters.Postgres was not compiled, ensure it is correct and it is included as a project dependency
(ecto 3.10.3) lib/ecto/repo/supervisor.ex:61: Ecto.Repo.Supervisor.compile_config/2
lib/[redacted]/repo.ex:3: (module)

The file in question:

defmodule CloHubspot.Repo do

	use Ecto.Repo,
	    otp_app: :clo_hubspot,
	    adapter: Ecto.Adapters.Postgres
end

The relevant bit of mix.exs:

defp deps do
	[
		{:phoenix, "~> 1.7.7"},
		{:phoenix_ecto, "~> 4.4.2"},
		{:ecto, "~> 3.10.3"},
		{:ecto_sql, "~> 3.10.1"},
		{:postgrex, "~> 0.17"},
		{:phoenix_html, "~> 3.3.1"},
		{:phoenix_live_reload, "~> 1.4.1", only: :dev},
		{:plug_cowboy, "~> 2.6"},
		{:httpoison, "~> 2.1.0"},
		{:poison, "~> 5.0.0"},
		{:hound, "~> 1.1.1"},
		{:cors_plug, "~> 3.0.3"},
		{:credo, "~> 1.7.0", only: [:dev, :test]},
		{:jason, "~> 1.4.1"}
	]
end

Erlang/Elixir versions:

Erlang/OTP 26 [erts-14.0.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [jit:ns] [dtrace]
Elixir 1.15.4 (compiled with Erlang/OTP 26)

I suspect my wanton upgrade of every @#$%@#$% thing broke postgres. Does anybody know where I ought to be?