diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..e881175
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "mix"
+    directory: "/"
+    schedule:
+      interval: "weekly"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..471a9b9
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,41 @@
+name: CI
+on:
+  pull_request:
+  push:
+
+jobs:
+  main:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - elixir: '1.17'
+            erlang: '27.0'
+            # lint: true / enable once 1.17 stable is released
+          - elixir: '1.16'
+            erlang: '26.2.5'
+            lint: true
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
+        if: ${{ ! matrix.lint }}
+        with:
+          path: |
+            _build
+            deps
+          key: ${{ runner.os }}-${{ matrix.elixir }}-${{ matrix.erlang }}-${{ hashFiles('mix.lock') }}
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{ matrix.erlang }}
+          elixir-version: ${{ matrix.elixir }}
+      - run: mix deps.get --check-locked
+      - run: mix format --check-formatted
+        if: ${{ matrix.lint }}
+      - run: mix deps.unlock --check-unused
+        if: ${{ matrix.lint }}
+      - run: mix compile
+        if: ${{ ! matrix.lint }}
+      - run: mix compile --warnings-as-errors
+        if: ${{ matrix.lint }}
+      - run: mix test
diff --git a/lib/tower_rollbar/rollbar/client.ex b/lib/tower_rollbar/rollbar/client.ex
index 6beb307..b1109b9 100644
--- a/lib/tower_rollbar/rollbar/client.ex
+++ b/lib/tower_rollbar/rollbar/client.ex
@@ -4,20 +4,20 @@ defmodule TowerRollbar.Rollbar.Client do
 
   def post(path, payload) when is_map(payload) do
     case :httpc.request(
-      :post,
-      {
-        ~c"#{@base_url}#{path}",
-        [{@access_token_header, access_token()}],
-        ~c"application/json",
-        Jason.encode!(payload)
-      },
-      [
-        ssl: [
-          cacerts: :public_key.cacerts_get()
-        ]
-      ],
-      []
-    ) do
+           :post,
+           {
+             ~c"#{@base_url}#{path}",
+             [{@access_token_header, access_token()}],
+             ~c"application/json",
+             Jason.encode!(payload)
+           },
+           [
+             ssl: [
+               cacerts: :public_key.cacerts_get()
+             ]
+           ],
+           []
+         ) do
       {:ok, result} ->
         result
         |> IO.inspect()
diff --git a/lib/tower_rollbar/rollbar/item.ex b/lib/tower_rollbar/rollbar/item.ex
index 7a56584..5719cdd 100644
--- a/lib/tower_rollbar/rollbar/item.ex
+++ b/lib/tower_rollbar/rollbar/item.ex
@@ -29,15 +29,16 @@ defmodule TowerRollbar.Rollbar.Item do
     person = Keyword.get(options, :person)
 
     %{
-      "data" => %{
-        "environment" => environment(),
-        "timestamp" => :os.system_time(:second),
-        "body" => body
-      }
-      |> maybe_put_request_data(plug_conn)
-      |> maybe_put_level(level)
-      |> maybe_put_custom(custom)
-      |> maybe_put_person(person)
+      "data" =>
+        %{
+          "environment" => environment(),
+          "timestamp" => :os.system_time(:second),
+          "body" => body
+        }
+        |> maybe_put_request_data(plug_conn)
+        |> maybe_put_level(level)
+        |> maybe_put_custom(custom)
+        |> maybe_put_person(person)
     }
   end
 
diff --git a/mix.exs b/mix.exs
index dfd10fc..9df04bb 100644
--- a/mix.exs
+++ b/mix.exs
@@ -14,7 +14,7 @@ defmodule TowerRollbar.MixProject do
   # Run "mix help compile.app" to learn about applications.
   def application do
     [
-      extra_applications: [:logger]
+      extra_applications: [:logger, :public_key]
     ]
   end