diff --git a/.gitignore b/.gitignore
index 5514d69..8fe4575 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,4 +25,6 @@ flagpack-*.tar
 # Temporary files, for example, from tests.
 /tmp/
 
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+.idea/
diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..785b859
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1 @@
+elixir 1.14.1
diff --git a/README.md b/README.md
index fd47dbe..ab9407d 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The package can be installed by adding `flagpack` to your list of dependencies i
 ```elixir
 def deps do
   [
-    {:flagpack, "~> 0.1.0"}
+    {:flagpack, "~> 0.3.0"}
   ]
 end
 ```
diff --git a/assets/flagpack.exs b/assets/flagpack.exs
index c59a602..056cd76 100644
--- a/assets/flagpack.exs
+++ b/assets/flagpack.exs
@@ -25,7 +25,7 @@ defmodule Flagpack do
 
   <%= for %{func: func, alpha: alpha, svg: svg} <- @flags do %>
   @doc """
-  Renders the <%= Helpers.country_name_by_alpha(alpha) %> flag.
+  Renders the <%= Flagpack.Helpers.country_name_by_alpha(alpha) %> flag.
 
   ## Examples
       <Flagpack.<%= func %> />
diff --git a/lib/helpers.ex b/lib/helpers.ex
index 7a24f43..5c67dd1 100644
--- a/lib/helpers.ex
+++ b/lib/helpers.ex
@@ -1,4 +1,4 @@
-defmodule Helpers do
+defmodule Flagpack.Helpers do
   @country_codes [
     %{country_name: "Andorra", alpha2: "AD", alpha3: "AND", numeric: "020"},
     %{
@@ -517,6 +517,15 @@ defmodule Helpers do
     |> Map.get(:country_name)
   end
 
+  def country_alpha3_by_alpha2(alpha2) do
+    alpha2 = String.upcase(alpha2)
+
+    case Enum.find(@country_codes, &(get_alpha2(&1) == alpha2)) do
+      nil -> nil
+      info = %{} -> Map.get(info, :alpha3)
+    end
+  end
+
   defp get_alpha2(country), do: Map.get(country, :alpha2, "")
   defp get_alpha3(country), do: Map.get(country, :alpha3, "")
 end