diff --git a/LICENSE b/LICENSE
index 2e6efa7..27308ba 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2015-2023, Benoit Chesneau <bchesneau@gmail.com>.
+Copyright (c) 2015-2024, Benoit Chesneau <bchesneau@gmail.com>.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/README.md b/README.md
index 9cfb0c5..6c70858 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # [certifi](https://github.com/certifi/erlang-certifi)
 
-[![Build Status](https://github.com/certifi/erlang-certifi/workflows/build/badge.svg)](https://github.com/certifi/erlang-certifi)
+[![CI](https://github.com/certifi/erlang-certifi/actions/workflows/erlang.yml/badge.svg)](https://github.com/certifi/erlang-certifi/actions/workflows/erlang.yml)
+[![Hex](https://img.shields.io/hexpm/v/certifi.svg)](https://hex.pm/packages/certifi)
+[![HexDocs](https://img.shields.io/badge/hex-docs-lightgreen.svg)](https://hexdocs.pm/certifi)
 
 This Erlang library contains a CA bundle that you can reference in your Erlang
 application. This is useful for systems that do not have CA bundles that
@@ -29,22 +31,16 @@ You can also retrieve the path to the file and load it by yourself if needed:
 Path = certifi:cacertfile().
 ```
 
-## Build & test
+## Development
+
+Testing:
 
 ```shell
-$ rebar3 eunit
+rebar3 eunit
 ```
 
-## Documentation generation
-
-### Edoc
-
-#### Generate public API
-`rebar3 edoc`
-
-#### Generate private API
-`rebar3 as edoc_private edoc`
+Documentation:
 
-### ExDoc
-
-`rebar3 ex_doc --output edoc`
\ No newline at end of file
+```shell
+rebar3 ex_doc
+```
diff --git a/rebar.config b/rebar.config
index 024e6bc..aa48b5f 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,8 +1,12 @@
+{minimum_otp_vsn, "21.3"}.
+
 {erl_first_files, ["src/certifi_pt.erl"]}.
 
-{erl_opts, [deterministic  %% Added since OTP 20
-           ,{platform_define, "^2", 'OTP_20_AND_ABOVE'}
-           ]}.
+{profiles, [
+    %% Since OTP 20
+    {default, [{erl_opts, [deterministic, {platform_define, "^2", 'OTP_20_AND_ABOVE'}]}]},
+    {docs, [{erl_opts, []}]}
+]}.
 
 {project_plugins, [rebar3_hex, rebar3_ex_doc]}.
 
@@ -12,8 +16,8 @@
 
 {ex_doc, [
     {extras, [
-          {"README.md", #{title => "Overview"}},
-          {"LICENSE", #{title => "License"}}
+        {"README.md", #{title => "Overview"}},
+        {"LICENSE", #{title => "License"}}
     ]},
     {main, "README.md"},
     {source_url, "https://github.com/certifi/erlang-certifi"},
diff --git a/src/certifi.erl b/src/certifi.erl
index 7be01a3..431b941 100644
--- a/src/certifi.erl
+++ b/src/certifi.erl
@@ -1,5 +1,5 @@
 -module(certifi).
-%% Causes the parse transformation function Module:parse_transform/2 
+%% Causes the parse transformation function Module:parse_transform/2
 %% to be applied to the parsed code before the code is checked for errors.
 -compile({parse_transform, certifi_pt}).
 
@@ -7,9 +7,10 @@
          cacerts/0]).
 
 %% @doc CACertFile gives the path to the file with an X.509 certificate list
-%% containing the Mozilla CA Certificate that can then be used via the
-%% cacertfile setting in ssl options passed to the connect function.
-
+%% containing the Mozilla CA Certificate.
+%%
+%% The file is used via the `cacertfile' setting in {@link //ssl/ssl} options,
+%% passed to the `ssl:connect/2,3,4' function.
 -spec cacertfile() -> Result when
 	Result :: file:filename_all().
 cacertfile() ->
@@ -25,8 +26,10 @@ cacertfile() ->
   filename:join(PrivDir, "cacerts.pem").
 
 %% @doc CACerts builds an X.509 certificate list containing the Mozilla CA
-%% Certificate that can then be used via the cacerts setting in ssl options
-%% passed to the connect function.
+%% Certificate.
+%%
+%% The certificate list is used via the `cacerts' setting in {@link //ssl/ssl}
+%% options, passed to the `connect/2,3,4' function.
 -spec cacerts() -> [binary(),...].
 cacerts() ->
-    ok.
\ No newline at end of file
+    ok.