diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..0ef8c69
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: '12:00'
+    open-pull-requests-limit: 10
+    labels:
+      - task
+      - dependencies
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..3243824
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,63 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        otp_version: ['27.0', '26.2', '25.3']
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{ matrix.otp_version }}
+          version-type: 'strict'
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/rebar3
+            _build
+          key: ${{ runner.os }}-erlang-${{ matrix.otp_version }}-${{ hashFiles('**/*rebar.lock') }}
+
+      - run: make build
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        otp_version: ['27.0', '26.2', '25.3']
+
+    needs:
+      - build
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{ matrix.otp_version }}
+          version-type: 'strict'
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/rebar3
+            _build
+          key: ${{ runner.os }}-erlang-${{ matrix.otp_version }}-${{ hashFiles('**/*rebar.lock') }}
+
+      - run: make test
diff --git a/Makefile b/Makefile
index 10d428c..b3bec85 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,8 @@ all: deps compile
 $(REBAR):
 	wget $(REBAR_URL) && chmod +x rebar3
 
+build: compile
+
 compile: $(REBAR)
 	@$(REBAR) compile
 
@@ -23,4 +25,5 @@ fresh:
 	rm -fr _build/*
 
 test: $(REBAR) all
+	@$(REBAR) dialyzer
 	@$(REBAR) eunit skip_deps=true
diff --git a/README.md b/README.md
index 49d9580..10b39df 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-#base32
+# base32_erlang
+
+![CI](https://github.com/dnsimple/base32_erlang/actions/workflows/ci.yml/badge.svg)
 
 **License: Apache 2**
 
diff --git a/rebar.config b/rebar.config
index d52e9dc..8dd8506 100644
--- a/rebar.config
+++ b/rebar.config
@@ -13,3 +13,7 @@
     write,
     {print_width, 140}
 ]}.
+
+{dialyzer, [
+   {warnings, [no_unknown]}
+]}.